Columbia subject headings:
Library of Congress. Subject Cataloging Division. Library of Congress subject headings.
National Library of Medicine (U.S.). Medical subject headings.
Subject headings, Library of Congress.
Subject headings--Medicine.
Harvard subject headings:
Library of Congress
National Library of Medicine (U.S.)
Subject headings, Library of Congress.
Subject headings--Medicine
Princeton subject headings:
Library of Congress. Subject Cataloging Division. Library of Congress subject headings.
National Library of Medicine (U.S.). Medical subject headings
Subject headings--Medicine.