Patterns of ambulatory care in general and family practice : the National ambulatory medical care survey, United States, January 1980-December 1981 /
Cypress, Beulah K.
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Statistics,
1983.
Bibliography: p. 16.
Physician services utilization
Ambulatory medical care
Medical care surveys