International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2008 > 102 > 3 > 237-241
International Journal of Gynecology and Obstetrics > 2010 > 108 > 1 > 61-64
International Journal of Gynecology and Obstetrics > 2008 > 102 > 3 > 237-241
International Journal of Gynecology and Obstetrics > 2010 > 108 > 1 > 61-64