Columbia subject headings:
Medicine--Research--United States--Bibliography.
National Center for Health Services Research and Health Care Technology Assessment (U.S.). Publications and Information Branch--Bibliography.
Harvard subject headings:
Princeton subject headings:
Medical technology--United States--Bibliography.
Medicine--Research--United States--Bibliography.
National Center for Health Services Research and Health Care Technology Assessment (U.S.). Publications and Information Branch--Bibliography.
Public health--United States--Bibliography.