Obstetrics & Gynecology
Obstetrics & Gynecology > 1997 > 89 > 1 > 5-9
Obstetrics & Gynecology > 1997 > 89 > 1 > 71-75
Obstetrics & Gynecology > 1997 > 89 > 1 > 97-103
Obstetrics & Gynecology > 1997 > 89 > 1 > 16-18
Obstetrics & Gynecology > 1997 > 89 > 1 > 49-52
Obstetrics & Gynecology > 1997 > 89 > 1 > 65-70
Obstetrics & Gynecology > 1997 > 89 > 1 > 85-87
Obstetrics & Gynecology > 1997 > 89 > 1 > 142-144
Obstetrics & Gynecology > 1997 > 89 > 1 > 108-112
Obstetrics & Gynecology > 1997 > 89 > 1 > 19-23
Obstetrics & Gynecology > 1997 > 89 > 1 > 118-122
Obstetrics & Gynecology > 1997 > 89 > 1 > 33-39
Obstetrics & Gynecology > 1997 > 89 > 1 > 57-60
Obstetrics & Gynecology > 1997 > 89 > 1 > 127-129
Obstetrics & Gynecology > 1997 > 89 > 1 > 129-132
Obstetrics & Gynecology > 1997 > 89 > 1 > 46-48
Obstetrics & Gynecology > 1997 > 89 > 1 > 40-45
Obstetrics & Gynecology > 1997 > 89 > 1 > 76-80