1. Detailed diagnoses and procedures, National Hospital Discharge Survey: 1987. National Center for Health Statistics;Graves;Vital Health Statistics,1989
2. Socio-economic factbook for surgery,1989
3. Statistical history of examination in general vascular surgery;Biester,1990
4. Vascular surgery in the United States: report of the Joint Society for Vascular Surgery—International Society for Cardiovascular Surgery Committee on Vascular Surgical Manpower;Ernst;J Vasc Surg,1987
5. Resident national data and resident statistics summary, Residency Review Committee for Surgery,1989