International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2010 > 111 > 2 > 161-164
International Journal of Gynecology and Obstetrics > 2011 > 114 > 2 > 91-96
International Journal of Gynecology and Obstetrics > 2010 > 111 > 2 > 161-164
International Journal of Gynecology and Obstetrics > 2011 > 114 > 2 > 91-96