Columbia subject headings:
Confidential communications--Physicians.
Medical records--Access control--United States.
Welfare recipients--Alcohol use--United States.
Welfare recipients--Drug use--United States.
Harvard subject headings:
Confidential communications--Physicians.
Medical records--Access control--United States
Welfare recipients--Alcohol use--United States.
Welfare recipients--Drug use--United States.
Princeton subject headings:
Confidential communications--Physicians.
Medical records--Access control--United States.
Welfare recipients--Alcohol use--United States.
Welfare recipients--Drug use--United States.