1. The increasing supply of physicians;Tarlov;N Engl J Med,1983
2. Physician characteristics and distribution in the United States;American Medical Association,1984
3. Manpower planning for obstetrics and gynecology,1987
4. Sex differences in the practice patterns of recently trained obstetrician-gynecologists;Weisman;Obstet Gynecol,1986
5. Current population reports, series P-25, no. 922,1982