0300-9041 0300-9041 S0300-90412019000900594 10.24245/gom.v87i9.3452 Mexico Mexico Mexico Mexico 00 00 2019 00 00 2019 87 9 594 599

1 2010 16 577-89 2 2011 26 1616-24 3 American Society for Reproductive Medicine 2015 103:e9-17 4 2005 20 2448-2 5 2007 109 1404-10 6 2003 79 482-8 7 2015 13 63 63 8 2004 81 1478-85 9 2005 83 37-41 10 2008 17 10-9 11 2002 17 118-23 12 2003 80 1156-61 13 2003 79 63-8 14 2004 19 893-8 15 2013 99 1825-30