1. New synthetic laminaria;Chavpil;Obstet Gynecol,1982
2. Prospective comparison of Dilapan and laminaria for pre-treatment of the cervix in second trimester induction abortion;Blumenthal;Obstet Gynecol,1988
3. Cervical treatment with Dilapan prior to second trimester dilation and evacuation abortion;Hern;Am J Gynecol Health,1993
4. Outpatient second-trimester D & E abortion through 24 menstrual weeks' gestation;Hern;Adv Planned Parent,1981
5. Laminaria and other adjunctive methods in second trimester abortion;Stubblefield,1981