0300-9041 0300-9041 S0300-90412018000800502 10.24245/gom.v86i8.1722 España España España España España 00 00 2018 00 00 2018 86 8 502 509

1 Royal College of Obstetricians and Gynaecologists 2007 45 45 2 3 Sociedad Española de Ginecología y Obstetricia 2010 4 5 6 7 8 9 10 11 12 13 14 15 16 17 2009 36 1 1 35-9