1. Midtrimester abortion by dilatation and evacuation. A safe and practical alternative;A, Grimes D.; F, Schulz K.; W, Jr, Cates; W, Tyler C.;New England journal of medicine,1977
2. Abortion;Potts, M.; Diggery, P.; Peel, J.,1977
3. Discussion summary;Schulman, H.,30,
4. Dilatation and evacuation: a preferred method of midtrimester abortion;I, Cadesky K.; E, Ravinski; R, Lyons E.;American journal of obstetrics and gynecology,1981
5. Deaths from second trimester abortion by dilatation and evacuation: cause, prevention, facilities;Cates, W.; A, Grimes D.;Obstetrics and gynecology,1981