1. Socioeconomic Factbook for Surgery;American College of Surgeons,1997
2. Physician Characteristics and Distribution in the United States;American Medical Association,1997
3. AUA Urology Residency Program Director Survey;American Urological Association,1994
4. AUA/Gallup Managed Care Survey;American Urological Association,1995
5. AUA National Supply and Demand Forecasts for Urologists, 1995 to 2020;American Urological Association,1995