Early termination of pregnancy with mifepristone (RU 486) and the orally active prostaglandin misoprostol. - Peyron,R.; Aubeny,E.; Targosz,V.; Slvestre,L.; Renault,M.; Elkik,F.; Leclerc,P.; Ulmann,A.; Baulieu,E.E. (N Engl J Med, 1993)