1. Role of the cervix in the induction of labor;Jagani;Obstet Gynecol,1982
2. A comparison of four methods of ripening the unfavorable cervix;Wilson;Br J Obstet Gynaecol,1978
3. Ripening of the human cervix and induction of labor with intracervical purified porcine relaxin;MacLanman;Obstet Gynecol,1986
4. Efficacy and safety of laminaria digitata for preinduction ripening of the cervix;Kazzi;Obstet Gynecol,1982
5. RAndomized trial of Dilapan and laminaria as cervical ripening agents before induction of labor;Blumenthal;Obstet Gynecol,1990