Health Insurance and Subjective Health Status: Data From the 1987 National Medical Expenditure Survey
Clancy, Carolyn M.
Gold, Marthe R.
Nutting, Paul A.
AMERICAN JOURNAL OF PUBLIC HEALTH 1993 September; 83(9): 1295- 1299
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Franks, Peter; Clancy, Carolyn M.; Nutting, Paul A. (1992-08-06)Over 90 percent of health maintenance organizations (HMOs) use primary care physicians as gatekeepers, whose role is to authorize access to specialty, emergency, and hospital care and to diagnostic tests. Gatekeeping has ...