The National Ambulatory Medical Care Survey: 1975-81 and 1985.
Nelson
C
C
McLemore
T
T
D000293:Adolescent; D000328:Adult; D000368:Aged; D000553:Ambulatory Care / Q000706:statistics & numerical data*; D003933:Diagnosis; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008511:Medicine; D009309:National Center for Health Statistics, U.S.; D009819:Office Visits / Q000706:statistics & numerical data; D013038:Specialization; D014481:United States