Search results for: Dan Zhang
International Journal of Gynecology and Obstetrics > 2011 > 112 > 2 > 131-134
International Journal of Gynecology and Obstetrics > 2011 > 112 > 1 > 11-14
International Journal of Gynecology and Obstetrics > 2008 > 103 > 2 > 149-152