1. Induced Abortion. A World Review 1986;Tietze,1986
2. Contraception futurology;Dicfalusy,1985
3. Pregnancy termination: techniques, risks, and complications and their management;Castadot;Fertil Steril,1987
4. The prospects of prostaglandins in postconceptional therapy;Csapo;Prostaglandins,1973
5. The use of prostaglandins and their analogues for abortion;Bygdeman;Clin Obstet Gynaecol,1984