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Peer evaluation
Ballantine, H. Thomas, (1980)
Health care costs : the magnitude of the problem
Carels, Edward J., (1980)
The new health care for profit : doctors and hospitals in a competitive environment
(1983)
National Survey of U.S. Health Professionals' Smoking Prevalence, Cessation Practices, and Beliefs
Tong, Elisa K., (2010)
National Survey of U.S. Health Professionals' Smoking Prevalence, Cessation Practices, and Beliefs.