Columbia subject headings:
Harvard subject headings:
Internists--Germany--Biography.
Internists--Germany--Diaries.
Katsch, Gerhardt, 1887-1961--Diaries.
Physicians--Germany--Biography
Physicians--Germany--Diaries.
Princeton subject headings:
Diaries.
Internists--Germany--Biography.
Internists--Germany--Diaries.
Katsch, Gerhardt, 1887-1961--Diaries.
Physicians--Germany--Biography.
Physicians--Germany--Diaries.