0300-9041 0300-9041 S0300-90412020000200071 10.24245/gom.v88i2.3031 Mexico Mexico Mexico Mexico Mexico 00 00 2020 00 00 2020 88 2 71 79

1 2019 41 2 2 233-47 2 2014 211 46 46 e1-46.e5 3 2014 57 557-67 4 2017 1-13 5 American College of Obstetricians and Gynecologists 2014 123 372-9 6 2018 219 1 1 10-25 7 2018 218 2 2 161-80 8 2017 41 8 8 452-60 9 2013 209 181-92 10 2016 127 934-40 11 2018 12 2018 1-9 13 2001 15 188-94