International Journal of Gynecology & Obstetrics
International Journal of Gynecology and Obstetrics > 2010 > 111 > 2 > 126-130
International Journal of Gynecology and Obstetrics > 2011 > 115 > 1 > 1-4
International Journal of Gynecology and Obstetrics > 2014 > 124 > 2 > 134-138