International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 1995 > 49 > S17-S25
International Journal of Gynecology and Obstetrics > 1995 > 49 > S33-S38
International Journal of Gynecology and Obstetrics > 1997 > 58 > 3 > 305-309
International Journal of Gynecology and Obstetrics > 2012 > 119 > Supplement 1 > S85-S88