International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2005 > 89 > 3 > 268-271
International Journal of Gynecology and Obstetrics > 2005 > 89 > 3 > 251-257
International Journal of Gynecology and Obstetrics > 2005 > 89 > 3 > 242-246