0212-9728 0212-9728 S0212-97282021000100014 10.6018/analesps.37.1.404671 Spain Spain Ecuador Spain 00 04 2021 00 04 2021 37 1 121 132

2011 23 3 3 486-94 2019 1 44 44 44-58 2017 43 3 3 176-83 2015 34 2 2 147-57 1986 2012 2015 1992 112 155-9 2006 18 4 4 377-86 2018 30 4 4 264-70 2018 4 2 2 25-32 2004 26 4 4 282-90 2017 33 2 2 260-8 2015 2018 43 3 3 5-12 1905 2017 4 2 2 1-4 2014 26 3 3 401-8 2016 117 39-46 2004 26 1 1 41-54 2006 59 1-2 1-2 9-36 2003 35 6 6 1261-70 2017 2007 25 2 2 113-22 2019 2012 35 6 6 521-6 2017 4 42 42 21-34 2020 22 1-8 Ministerio de Sanidad 2016 2018 26 2 2 359-77 2019 1 44 44 28-43 2017 25 1 1 65-78 2009 43 2 2 230-40 2014 2002 1996 1 161-206 2010 168 7 7 516-23 2016 54 5 5 626-34 2013 2002 16 1 1 72-5 2019 27 6 6 522-9 2018 32 1 1 41-7 2015 9 1 1 27-41 2014 20 2-3 2-3 101-14 2016 1 2 2 191-9 2017 2018 53 5 5 859-66 World Medical Association 2013 310 20 20 2191-4