4[1]Preutthipan S, Herabutya Y. Vaginal misoprostol for cervical priming before operative hysteroscopy: a randomized controlled trial. Obstet Gynecol,2000,96(6):890
5[2]Molin A. Risk of damage to the cervix in dilatation for first trimester induced abortion by suction aspiration. Gynecol Obstet Invest,1993,35:152
6[3]Ngai SW,Chan YM, Ho PC.The use of misoprostol prior to hysteroscopy in postmenopausal women. Hum Reprod,2001,16(7):1486
7[1]Ho PC, Liang ST, Tang GWK, et al. Pro-operative cervical dilatation in termination of first trimester pregnancies using 16,16-methy-trans-GPE1 methy1 ester vaginal pessaries. Contraception, 1983,27:339-346.
8[2]Singh K, Fong YF. Preparation of the cervix for surgical termination of pregnancy in the first trimester. Hum Reprod Update, 2000, 6: 442-448.
9[3]Ding JQ, Granberg S, Norstrom A. Clinial effects and cervical tissue changes after treatment with 16, 16 dimethyel - trans 2GPE1, menthy-lester in the first trimester. Prostaglandins, 1990,39: 281-285.
10[4]Ngai SW, Chan YM, Tang OS, et al. The use of misoprostol for pre-operative cervical dilatation prior to vacuum aspiration: a randomized trial. Hum Reprod, 1999, 14:2139-2142.
5Xu J, Cher H, Ma T, et al. Termination of early pregnancy in the scarred uterus with mifepristone and misoprostol [J ]. Int J Gynaecol Obstet, 2001, 72(3): 245-251.
