Columbia subject headings:
Internists--Washington (D.C.)--Biography.
Knaus, William A.
Medicine--Soviet Union.
National health services--Soviet Union.
Soviet Union--Description and travel.
Harvard subject headings:
Internists--Washington (D.C.)--Biography.
Knaus, William A.
Medicine--Soviet Union.
National health services--Soviet Union.
Soviet Union--Description and travel.
Princeton subject headings:
Internists--Washington (D.C.)--Biography.
Knaus, William A.
Medicine--Soviet Union.
National health services--Soviet Union.
Soviet Union--Description and travel.