Columbia subject headings:
Harvard subject headings:
Lent, Eduard, 1831-1911
Physicians--Germany--Biography
Public health--Germany--Cologne--History--19th century.
Public health--Germany--Cologne--History--20th century.
Princeton subject headings:
Lent, Eduard, 1831-1911.
Physicians--Germany--Biography.
Public health--Germany--Cologne--History--19th century.
Public health--Germany--Cologne--History--20th century.