1. Short-term complications of uterine evacuation techniques for abortion at 12 weeks gestation or earlier;Cates,1979
2. Preterm birth and low birth weight related to complications in previous vacuum aspiration abortion. A case-control study within a cohort;Meirik;Acta Universitas Upps. No. 422,1982
3. Comparison of different prostaglandin analogues and laminaria for preoperative dilatation of the cervix in late first trimester abortion;Christensen;Contraception,1983
4. Ripening of the cervix by intracervical application of PGE2-gel before termination of pregnancy with dilatation and evacuation;Wingerup;Acta Obstet Gynecol Scand (Suppl),1979
5. Biochemical changes in human cervical connective tissue during pretreatment with Laminaria tents in legal first trimester abortions;Jonasson;Int J Obstet Gynecol,1988