1. 2
2. Labor induction with the prostaglandin E1 methyl analogue misoprostol vs. oxytocin: a randomized trial;Sanchez-Ramos;Obstet Gynecol,1993
3. Intravaginal misoprostol as a cervical ripening agent;Fletcher;Br J Obstet Gynaecol,1993
4. Intravaginal misoprostol vs. dinoprostone as cervical ripening and labor-inducing agents;Fletcher;Obstet Gynecol,1994