International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2001 > 75 > 3 > 251-255
International Journal of Gynecology and Obstetrics > 2011 > 114 > 2 > 116-119
International Journal of Gynecology and Obstetrics > 2001 > 75 > 3 > 251-255
International Journal of Gynecology and Obstetrics > 2011 > 114 > 2 > 116-119