5Hardman SMR, Gebbie A E.Hormonal contraceptive regimens in the permenpause [J].Maturitas, 2009,63 ( 3 ) : 204-212.
6Lal S, Kriplani A, Kulshlshrestha V, et al.Effieacy of mifepristone in redueing intermenstrual vaginal bleeding in users of the lev- onorgestrel intrauterine system [J].Int J Gyalaecol Obstet,2010,109 (2) : 128-130.
7Wildemeerseh D,Janssons D,Pylyser K,et al.Management of pa- tients with non-atypical and atypical endometrial hyperplasia with a lev-onorgestrelreleasing intrauterine system : longterm follow-up[J]. Maturi-tas, 2007,57 ( 2 ) : 210-213.
8Gupta B, Mittal S, Misra R, et al.Levonorgestrel-releasing intrauter- ine system vs.transcervical endometrial resection for dysfunctional uterine bleeding[J].Int J Gynaecol Obstet, 2006,95(3) : 261-266.
