Columbia subject headings:
Government publications--United States--Bibliography--Catalogs.
Health--Bibliography--Catalogs.
Medical care--United States--Bibliography--Catalogs.
Harvard subject headings:
Environmental health--United States--Abstracts.
Environmental health--United States--Bibliography--Catalogs.
Government publications--United States--Abstracts.
Government publications--United States--Bibliography--Catalogs.
Medicine--United States--Abstracts.
Medicine--United States--Bibliography--Catalogs.
Public health--United States--Abstracts.
Public health--United States--Bibliography--Catalogs.
Publishers' catalogers--United States.
United States. General Accounting Office--Catalogs.
Princeton subject headings: