International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2012 > 119 > 2 > 117-120
International Journal of Gynecology and Obstetrics > 2015 > 129 > 2 > 123-127
International Journal of Gynecology & Obstetrics > 2016 > 134 > 3 > 345-349