Arulkumaran S, Regan L,Papageorghiou AT,et al ﹒ Oxford Desk Reference Obstetrics and gynaecolo gy ﹒ 1stedition,Oxford University Press,2011,486‐487,550‐553 ﹒.Curtis MG, Overholt S,Hopkins MP ﹒ Glass门诊妇科学.第6版.赵兴波,译.北京:人民卫生出版社,2007 .. ......