International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2012 > 116 > 1 > 6-9
International Journal of Gynecology and Obstetrics > 2012 > 119 > 1 > 21-25
International Journal of Gynecology and Obstetrics > 2012 > 116 > 1 > 6-9
International Journal of Gynecology and Obstetrics > 2012 > 119 > 1 > 21-25