International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2012 > 116 > 1 > 52-56
International Journal of Gynecology and Obstetrics > 2012 > 116 > 2 > 117-119
International Journal of Gynecology and Obstetrics > 2012 > 116 > 1 > 52-56
International Journal of Gynecology and Obstetrics > 2012 > 116 > 2 > 117-119