Columbia subject headings:
Harvard subject headings:
Heads of state--Germany--Biography--Congresses.
Medical policy--Germany--History--20th century--Congresses.
Medicine--Germany--History--20th century--Congresses.
Medicine--Political aspects--Germany--History--20th century--Congresses.
National socialism and medicine--Congresses.
Nazis--Germany--Biography--Congresses.
Physicians--Germany--History--20th century--Congresses.
Princeton subject headings:
Heads of state--Germany--Biography--Congresses.
Medical policy--Germany--History--20th century--Congresses.
Medicine--Germany--History--20th century--Congresses.
Medicine--Political aspects--Germany--History--20th century--Congresses.
National socialism and medicine--Congresses.
Nazis--Germany--Biography--Congresses.
Physicians--Germany--History--20th century--Congresses.