0300-9041 0300-9041 S0300-90412020000800005 10.24245/gom.v88i8.4281 Mexico Mexico Mexico Mexico 00 00 2020 00 00 2020 88 8 525 535

1 2015 126 1 1 196-206 2 Grupo Banco Mundial 2019 3 2006 35 3 3 706-18 4 2013 149 5-15 5 2016 22 3 3 163-74 6 2015 169 9 9 855-62 7 American Academy of Pediatrics Committee on Fetus and Newborn 2012 130 3 3 587-97 8 2018 27 2 2 445-53 9 10 11 World Health Organization 2018 12 2018 13 12 12 2044-9 13 2018 31 18 18 2429-35 14 American College of Obstetricians and Gynecologists.Society for Maternal-Fetal Medicine 2017 130 4 4 e187-99 15 2017 3 3 3 CD004454 16 2016 294 1 1 41-6 17 2018 23 5 5 333-9 18 2017 81 1-2 1-2 240-8 19 2016 110 3 3 210-24 20 2013 80 3 3 93-7 21 2013 70 4 4 299-303 22 2003 66 1 1 22-8 23 2007 17 1 1 46-51 24 2017 37 6 6 420-4 25 Committee on Practice Bulletins American College of Obstetricians and Gynecologists 2016 128 26 2005 19 3-4 3-4 133-40 27 2018 172 1 1 17-23 28 2010 7 12 12 29 2019 8 3 3 246-56 30 2019 24 1 1 18-26