Columbia subject headings:
Harvard subject headings:
Cancer--Research--Germany--History--20th century.
Erdmann, Rhoda, 1870-1935
Oncologists--Germany--Biography.
Women cytologists--Germany--Biography.
Princeton subject headings:
Cancer--Research--Germany--History--20th century.
Erdmann, Rhoda, 1870-1935.
Oncologists--Germany--Biography.
Women cytologists--Germany--Biography.