1. Roback G, Randolph L, Seidman B: Physician Characteristics and distribution in the US: Chicago: American Medical Association, Survey and Data Resources, 1994:18(Table A-2).
2. Ergonomic and human factors affecting anesthetic vigilance and monitoring performance in the operating room environment;Weinger;Anesthesiology,1990
3. Human work environment and simulators;Gaba,1994
4. Resident performance and sleep deprivation;Asken;J Med Ed,1983
5. Work and rest cycles in anesthesia practice;Gravenstein;Anesthesiology,1990