1. Prostaglandins for first-trimester termination;Meckstroth;Best Pract Res Clin Obstet Gynaecol,2003
2. Randomized study of sulprostone versus misoprostol in the cervical preparation before elective abortion in nulliparous women;Schaub;J Gynecol Obstet Biol Reprod (Paris),1995
3. Vaginal prostaglandin E1 analogue to soften the cervix in first trimester abortion;Hulka;Obstet Gynecol,1987
4. A comparative study using two dose regimens (200 micrograms or 400 micrograms) of vaginal misoprostol for pre-operative cervical dilatation in first trimester nullipara;Singh;Br J Obstet Gynaecol,1998
5. Vaginal misoprostol compared with oral misoprostol in termination of second-trimester pregnancy;Ho;Obstet Gynecol,1997