International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 1998 > 63 > Supplement 1 > S141-S146
International Journal of Gynecology and Obstetrics > 1998 > 63 > 1 > 39-49
International Journal of Gynecology and Obstetrics > 1998 > 63 > Supplement 1 > S141-S146
International Journal of Gynecology and Obstetrics > 1998 > 63 > 1 > 39-49