1. Oral contraceptives;Population Rep, Ser A, No 1,1974
2. Barrier methods;Population Rep, Ser H, No 4,1976
3. The copper intrauterine device and its mode of action;Oster;N Engl J Med,1975
4. Update on the pill: does reliability outweigh risk?;Bernstein;Today’s Health, March,1976
5. Thrombosis and oral contraceptives: possible predisposition;Åstedt;Br Med J,1973