Patients' reasons for visiting physicians : the national ambulatory medical care survey, United States, 1977-78 /
Cypress, Beulah K.
Hyattsville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, Office of Health Research, Statistics, and Technology, National Center for Health Statistics,
1981.
Includes bibliographical references.
Physician services utilization
Ambulatory medical care
Medical care surveys