1. Longitudinal Study of Surgical Residents,1994
2. The longitudinal study of surgical residents, 1993–1994;Kwakwa;J Am Coll Surg,1996
3. Medical Education Research and Information Database, American Medical Association, Chicago, IL, 1995, 1996, 1997, 1998.
4. Graduate Medical Education Directory, 1994–1995, 1995–1996, American Medical Association, Chicago, IL, 1994, 1995.
5. Manpower needs in urology in the twenty-first century;McCullough;Urol Clin North Am,1998