1137-6627 1137-6627 S1137-66272018000200161 10.23938/assn.0300 Spain Spain Spain Spain Spain Spain Spain Spain Spain Spain Spain 00 08 2018 00 08 2018 41 2 161 169

1 2011 364 749-57 2 2009 26 82-6 3 2013 141 1-7 4 2010 81 1527-33 5 2012 138 567-9 6 2016 20 227 7 2012 38 1105-17 8 2008 134 117-25 9 American College of Emergency Physicians 2001 38 470-81 10 American College of Emergency Physicians 2009 53 550-70 11 2008 27 745-9 12 Ministerio de Sanidad, Servicios Sociales e Igualdad 2016 13 2017 29 403-11 14 2018 42 141-50 15 2014 26 19-34 16 1999 46 466-72 17 2012 38 577-91 18 2014 27 683.e1-683.e-33 19 2015 65 699-701 20 2009 16 1242-50 21 1997 29 338-47 22 2006 48 540-7 23 2017 29 361-2 24 2016 28 396-9 25 2016 28 356 26 2017 29 432-3 27 2017 doi 10 28 2015 41 1638-47 29 2014 40 1795-815 30 2005 118 1010-8