International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2012 > 116 > 2 > 93-96
International Journal of Gynecology and Obstetrics > 2012 > 117 > 1 > 40-44
International Journal of Gynecology and Obstetrics > 2012 > 118 > 1 > 56-60
International Journal of Gynecology and Obstetrics > 2012 > 119 > 1 > 57-60