Columbia subject headings:
Arbona, Guillermo.
Medicine--Puerto Rico--History.
Physicians--Puerto Rico--Biography.
Public health--Puerto Rico--History.
Tropical medicine--Puerto Rico--History.
Harvard subject headings:
Arbona, Guillermo
Arbona, Guillermo.
Medicine--Puerto Rico--History.
Physicians--Puerto Rico--Biography.
Public health--Puerto Rico--History.
Tropical medicine--Puerto Rico--History.
Princeton subject headings:
Arbona, Guillermo.
Medicine--Puerto Rico--History.
Physicians--Puerto Rico--Biography.
Public health--Puerto Rico--History.
Tropical medicine--Puerto Rico--History.