1. Report of the Graduate Medical Education National Advisory Committee to the Secretary, Department of Health and Human Services, September, 1980, Public Health Service, Health Resource Administration, Washington, D. C.
2. National Thoracic Surgery Manpower Study;Brewer,1974
3. Determining how much medical care we need;Relman;N Engl J Med,1980
4. Trends in cardiac surgery. Five-year study of a defined population;Kennedy;J Thorac Cardiovasc Surg,1980
5. Population studies in Rochester and Olmsted County, Minnesota, 1900–1968;Kurland,1970