Columbia subject headings:
AIDS (Disease)--United States--Epidemiology.
Drug addicts--Diseases--United States.
Intravenous drug abuse--Health aspects--United States.
Harvard subject headings:
AIDS (Disease)--United States
Drug addicts--Diseases--United States.
Intravenous drug abuse--Complications--United States.
Intravenous drug abuse--Health aspects--United States.
Intravenous drug abusers--Diseases--United States.
Princeton subject headings:
AIDS (Disease)--United States.
Drug addicts--Diseases--United States.
Intravenous drug abuse--Complications--United States.