0120-4157 0120-4157 S0120-41572019000200314 10.7705/biomedica.v39i3.3837 Colombia Colombia Colombia 00 06 2019 00 06 2019 39 2 314 322

1 2016 387 462-74 2 2008 115 1265-72 3 American College of Obstetricians and Gynecologists 2006 108 1039-47 4 2016 198 12-21 5 2007 62 540-7 6 1979 54 361-5 7 2016 206 12-21 8 2015 9 2011 90 1036-42 10 2011 76 76-85 11 2002 19 1-5 12 Ministerio de Salud y Protección Social 2015 86 13 2013 41 692-5 14 2014 57 17-27 15 2015 43 136-41 16 2012 117 119-23 17 2008 3 18 2005 84 1075-80 19 2008 26 188-97 20 2009 19 2197-203 21 2009 20 1036-45 22 2006 127 68-72 23 2017 116 380-7 24 2008 23 1553-9 25 2012 161 26 2007 86 228-34 27 1985 151 227-31 28 2010 53 209-18 29 2013 24 703-9 30 2010 25 651-5 31 1979 133 152-4 32 2004 10 301-6 33 2010 20 1777-85 34 2015 121 142-8 35 2011 37 377-8 36 2016 39 1159-64