<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1889-836X</journal-id>
<journal-title><![CDATA[Revista de Osteoporosis y Metabolismo Mineral]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Osteoporos Metab Miner]]></abbrev-journal-title>
<issn>1889-836X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Española de Investigaciones Óseas y Metabolismo Mineral]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1889-836X2018000200005</article-id>
<article-id pub-id-type="doi">10.4321/s1889-836x2018000200005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calcifediol mensual frente a calcifediol quincenal en el tratamiento de pacientes osteoporóticos. Estudio en la vida real]]></article-title>
<article-title xml:lang="en"><![CDATA[Monthly versus biweekley calcifediol in the treatment of osteoporotic patients. Study in real life]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olmos]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arnaiz]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olmos-Martínez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Macías]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Hospital Universitario Marqués de Valdecilla Instituto de Investigación Sanitaria (IDIVAL) Departamento de Medicina Interna]]></institution>
<addr-line><![CDATA[Santander ]]></addr-line>
<country>España</country>
</aff>
<aff id="A1b">
<institution><![CDATA[,Universidad de Cantabria  ]]></institution>
<addr-line><![CDATA[Santander ]]></addr-line>
<country>España</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Hospital Universitario Marqués de Valdecilla Instituto de Investigación Sanitaria (IDIVAL) Servicio de Aparato Digestivo]]></institution>
<addr-line><![CDATA[Santander ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>10</volume>
<numero>2</numero>
<fpage>89</fpage>
<lpage>95</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1889-836X2018000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1889-836X2018000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1889-836X2018000200005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivos: Valorar las concentraciones séricas de 25-hidroxivitamina D, 25(OH)D, en pacientes osteoporóticos tratados durante un año con calcifediol.  Métodos: Se han estudiado 156 pacientes con osteoporosis (23 varones y 133 mujeres) de 71,9±9,6 años de edad que habían recibido tratamiento con calcifediol durante al menos un año. Noventa y dos de ellos recibieron 0,266 mg de calcifediol cada quince días y los 64 restantes la misma dosis una vez al mes. Se determinaron los niveles séricos de 25(OH)D, PTH intacta (PTHi), propéptido aminoterminal del procolágeno tipo I (PINP) y telopéptido carboxiterminal del colágeno tipo I (CTX), antes y un año después de iniciar el tratamiento.  Resultados: Con ambas pautas de tratamiento se observó un aumento significativo en la concentración de 25(OH)D (p&lt;0,001). El porcentaje de pacientes que alcanzaron niveles de 25(OH)D superiores a 20 y 30 ng/ml fue similar con ambas pautas, mientras que el de pacientes que sobrepasó los 60 ng/ml fue mayor con la dosis quincenal (p&lt;0,01). La concentración de PTHi disminuyó de forma significativa tras la administración de calcifediol, aunque en esta ocasión no hubo diferencias entre las dos formas de tratamiento. Ambos marcadores, PINP y CTX, disminuyeron de forma similar en los pacientes tratados con antirresortivos (p&lt;0,0001), sin que estos cambios guardaran relación con la pauta de calcifediol.  Conclusiones: La administración mensual de 0,266 mg de calcifediol es adecuada para lograr unos niveles eficaces de vitamina D, y es también suficientemente segura como para evitar que se alcancen niveles potencialmente perjudiciales de la misma, por lo que sería preferible a la pauta quincenal en la práctica clínica habitual.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary  Objectives: To assess serum concentrations of 25-hydroxyvitamin D, 25(OH)D, in osteoporotic patients treated for one year with calcifediol.  Methods: We have studied 156 patients with osteoporosis (23 males and 133 females), aged 71,9±9,6 years who had received treatment with calcifediol for at least one year. Ninety-two of them received 0.266 mg of calcifediol every fifteen days and the remaining 64 the same dose once a month. Serum levels of 25(OH)D, intact PTH (iPTH), procollagen type 1 amino-terminal propeptide (PINP) and C-terminal crosslinked telopeptide of type I collagen (CTX) were determined before and one year after starting treatment.  Results: A significant increase in the concentration of 25(OH)D was observed with both treatment regimens (p&lt;0.001). The percentage of patients who reached levels of 25(OH)D higher than 20 and 30 ng/ml was similar with both guidelines, while the percentage of patients exceeding 60 ng/ml was higher with the biweekly dose (p&lt;0.01). The concentration of iPTH decreased significantly after the administration of calcifediol, although on this occasion there were no differences between the two forms of treatment. Both bone remodeling markers, PINP and CTX, decreased similarly in patients treated with antiresorptives (p&lt;0.0001), without these changes being related to the calcifediol regimen.  Conclusions: The monthly administration of 0.266 mg of calcifediol is adequate to achieve effective levels of vitamin D, and it is also safe enough to avoid reaching potentially harmful levels of it, so it would be preferable to the biweekly schedule in the usual clinical practice.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[calcifediol]]></kwd>
<kwd lng="es"><![CDATA[PTH]]></kwd>
<kwd lng="es"><![CDATA[osteoporosis]]></kwd>
<kwd lng="es"><![CDATA[vitamina D]]></kwd>
<kwd lng="es"><![CDATA[marcadores de la remodelación]]></kwd>
<kwd lng="en"><![CDATA[calcifediol]]></kwd>
<kwd lng="en"><![CDATA[PTH]]></kwd>
<kwd lng="en"><![CDATA[osteoporosis]]></kwd>
<kwd lng="en"><![CDATA[vitamin D]]></kwd>
<kwd lng="en"><![CDATA[bone remodeling markers]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Binkley]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[GD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Toward Clarity in Clinical Vitamin D Status Assessment: 25(OH)D Assay Standardization]]></article-title>
<source><![CDATA[Endocrinol Metab Clin North Am]]></source>
<year>2017</year>
<volume>46</volume>
<page-range>885-99</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dawson-Hughes]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Mithal]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bonjour]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[Boonen]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Burckhardt]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Fuleihan]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[IOF position statement vitamin D recommendations for older adults]]></article-title>
<source><![CDATA[Osteoporos Int]]></source>
<year>2010</year>
<volume>21</volume>
<page-range>1151-4</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holick]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Binkley]]></surname>
<given-names><![CDATA[NC]]></given-names>
</name>
<name>
<surname><![CDATA[Bischoff-Ferrari]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
<name>
<surname><![CDATA[Gordon]]></surname>
<given-names><![CDATA[CM]]></given-names>
</name>
<name>
<surname><![CDATA[Hanley]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2011</year>
<volume>96</volume>
<page-range>1911-30</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<collab>Institute of Medicine (IOM)</collab>
<source><![CDATA[Dietary reference intakes for calcium and vitamin D]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Washington, DC ]]></publisher-loc>
<publisher-name><![CDATA[National Academies Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Varsavsky]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rozas Moreno]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Becerra Fernández]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Luque Fernández]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Quesada Gómez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<collab>Grupo de Trabajo de Osteoporosis y Metabolismo Mineral de la Sociedad Española de Endocrinología y Nutrición</collab>
<article-title xml:lang=""><![CDATA[Recomendaciones de Vitamina D para la población general]]></article-title>
<source><![CDATA[Endocrinol Diabetes Nutr]]></source>
<year>2017</year>
<volume>64</volume>
<numero>Suppl 1</numero>
<issue>Suppl 1</issue>
<page-range>7-14</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gómez de Tejada Romero]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa Henríquez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pino Montes]]></surname>
<given-names><![CDATA[J del]]></given-names>
</name>
<name>
<surname><![CDATA[Jódar Gimeno]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Quesada Gómez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Cancelo Hidalgo]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Documento de posición sobre las necesidades y niveles óptimos de Vitamina D. Sociedad Española de Investigación Ósea y Metabolismo Mineral (SEIOMM) y Sociedades afines]]></article-title>
<source><![CDATA[Rev Osteoporosis Metab Miner]]></source>
<year>2011</year>
<volume>3</volume>
<page-range>53-64</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zittermann]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The biphasic effect of vitamin d on the musculoskeletal and cardiovascular system]]></article-title>
<source><![CDATA[Int J Endocrinol]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Durup]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Jørgensen]]></surname>
<given-names><![CDATA[HL]]></given-names>
</name>
<name>
<surname><![CDATA[Christensen]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Schwarz]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Heegaard]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Lind]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A reverse J-shaped association of all-cause mortalitywith serum 25-hydroxyvitamin D in general practice: The CopDstudy]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2012</year>
<volume>97</volume>
<page-range>2644-52</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cosman]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Beur]]></surname>
<given-names><![CDATA[SJ de]]></given-names>
</name>
<name>
<surname><![CDATA[LeBoff]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[Lewiecki]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Tanner]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Randall]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinician&#8217;s Guide to Prevention and Treatment of Osteoporosis]]></article-title>
<source><![CDATA[Osteoporos Int]]></source>
<year>2014</year>
<volume>25</volume>
<page-range>2359-81</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Macías]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pino-Montes]]></surname>
<given-names><![CDATA[J del]]></given-names>
</name>
<name>
<surname><![CDATA[Olmos]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Nogués]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guías de práctica clínica en la osteoporosis postmenopáusica, glucocorticoidea y del varón]]></article-title>
<collab>Comisión de Redacción de las Guías de Osteoporosis de la SEIOMM</collab>
<source><![CDATA[Rev Clin Esp]]></source>
<year>2015</year>
<volume>215</volume>
<edition>3ª</edition>
<page-range>515-26</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Compston]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Cooper]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cooper]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gittoes]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Gregson]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Harvey]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[UK clinical guideline for the prevention and treatment of osteoporosis]]></article-title>
<collab>National Osteoporosis Guideline Group (NOGG)</collab>
<source><![CDATA[Arch Osteoporos.]]></source>
<year>2017</year>
<volume>12</volume>
<page-range>43</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Díez-Pérez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Olmos]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Nogués]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Curiel]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Castrillón]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Risk factors for prediction of inadequate response to antiresorptives]]></article-title>
<source><![CDATA[J Bone Miner Res]]></source>
<year>2012</year>
<volume>27</volume>
<page-range>817-24</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="">
<collab>Institute of Medicine (US)</collab>
<source><![CDATA[Committee to review dietary reference intakes for vitamin d and calcium, dietary reference intakes for calcium and vitamin D]]></source>
<year>2011</year>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jetter]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Egli]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dawson-Hughe]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Staehelin]]></surname>
<given-names><![CDATA[HB]]></given-names>
</name>
<name>
<surname><![CDATA[Stoecklin]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Goessl]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pharmacokinetics of oral vitamin D(3) and calcifediol]]></article-title>
<source><![CDATA[Bone]]></source>
<year>2014</year>
<volume>59</volume>
<page-range>14-9</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shieh]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Chun]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Witzel]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Rafison]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[HTM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of CholecalciferolvsCalcifediol on Total and Free 25-Hydroxyvitamin D and Parathyroid Hormone]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2017</year>
<volume>102</volume>
<page-range>1133-40</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Navarro-Valverde]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa-Henríquez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Alhambra-Expósito]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Quesada-Gómez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Vitamin D3 and calcidiol are not equipotent]]></article-title>
<source><![CDATA[J Steroid Biochem Mol Biol]]></source>
<year>2016</year>
<volume>164</volume>
<page-range>205-8</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olmos]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Llorca]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Nan]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Valero]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[González-Macías]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of 25-Hydroxyvitamin D3 therapy on bone turnover markers and PTH levels in postmenopausal osteoporotic women treated with alendronate]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2012</year>
<volume>97</volume>
<page-range>4491-7</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aloia]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Talwar]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Pollack]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Feuerman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Yeh]]></surname>
<given-names><![CDATA[JK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimal vitamin D status and serum parathyroid hormone concentrations in African American women]]></article-title>
<source><![CDATA[Am J Clin Nutr]]></source>
<year>2006</year>
<volume>84</volume>
<page-range>602-9</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vieth]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ladak]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Walfish]]></surname>
<given-names><![CDATA[PG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Age-related changes in the 25-hydroxyvitamin D versus parathyroid hormone relationship suggest a different reason why older adults require more vitamin D]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2003</year>
<volume>88</volume>
<page-range>185-91</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kuchuck]]></surname>
<given-names><![CDATA[NO]]></given-names>
</name>
<name>
<surname><![CDATA[Pluijm]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Schoor]]></surname>
<given-names><![CDATA[NM van]]></given-names>
</name>
<name>
<surname><![CDATA[Looman]]></surname>
<given-names><![CDATA[CWN]]></given-names>
</name>
<name>
<surname><![CDATA[Smit]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Lips]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationships of serum 25-hydroxyvitamin D to bone mineral density and serum parathyroid hormone and markers of bone turnover in older persons]]></article-title>
<source><![CDATA[J Clin Endocrinol Metab]]></source>
<year>2009</year>
<volume>94</volume>
<page-range>1244-50</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nakamura]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Nashimoto]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Tsuchiya]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Saito]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Nishiwaki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Ueno]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Threshold value of serum 25hydroxyvitamin D concentration in relation to elevated serum parathyroid hormone concentrations in elderly Japanese women]]></article-title>
<source><![CDATA[J Bone Miner Res]]></source>
<year>2006</year>
<volume>24</volume>
<page-range>395-400</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olmos]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[García-Velasco]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Llorca]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[González-Macías]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Serum 25-hydroxyvitamin D, parathyroid hormone, calcium intake, and bone mineral density in Spanish adults]]></article-title>
<source><![CDATA[Osteoporos Int]]></source>
<year>2016</year>
<volume>27</volume>
<page-range>105-13</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Michaëlsson]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Baron]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Snellman]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Gedeborg]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Byberg]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Sundström]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Plasma vitamin D and mortality in older men: a community-based prospective cohort study]]></article-title>
<source><![CDATA[Am J Clin Nutr]]></source>
<year>2010</year>
<volume>92</volume>
<page-range>841-8</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Gallagher]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Suiter]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Medium doses of daily vitamin D decrease falls and higher doses of daily vitamin D3 increase falls: A randomized clinical trial]]></article-title>
<source><![CDATA[J Steroid Biochem Mol Biol]]></source>
<year>2017</year>
<volume>173</volume>
<page-range>317-22</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
