1. The Genuine Works of Hippocrates;Adams,1939
2. Bernard C: An Introduction to the Study of Experimental Medicine (1865). (English translation by H.C. Greene.) NY, Henry Schuman, 1949
3. Injuries to research subjects: A survey of investigators;Cardon;New Engl J Med,1976
4. Promoting perinatal health: Is it time for a change of em-phasis in research?;Chalmers;Early Human Dev,1985
5. The impact of controlled trials on the practice of medicine;Chalmers;Mt. Sinai J Med,1974