Columbia subject headings:
Gorgas, William Crawford, 1854-1920.
Panama Canal (Panama)
Harvard subject headings:
Gorgas, William Crawford, 1854-1920
Malaria--Panama--Canal Zone--Prevention.
Panama Canal (Panama)
Panama Canal (Panama)--History
Physicians--Alabama--Biography.
Public health--Panama--Canal Zone.
United States--Armed Forces--Medical personnel--Biography.
Yellow fever--Panama--Canal Zone--Prevention.
Princeton subject headings:
Gorgas, William Crawford, 1854-1920.
Panama Canal (Panama)