Search results for: Xin Duan
European Journal of Obstetrics and Gynecology > 2008 > 138 > 2 > 226-231
Journal of Gastroenterology > 2007 > 42 > 2 > 140-145
European Journal of Obstetrics and Gynecology > 2008 > 138 > 2 > 226-231
Journal of Gastroenterology > 2007 > 42 > 2 > 140-145