Cohen, Paul A. G.
Franzblau, Michael J.
Clancy, Carolyn M.
Nutting, Paul A.
NEW ENGLAND JOURNAL OF MEDICINE 1992 November 19; 327(21): 1532-1533
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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 ...