Columbia subject headings:
Diseases and history--North America.
Epidemics--North America--History.
Indians of North America--Diseases.
Indians of North America--Population.
Harvard subject headings:
Diseases and history--North America.
Epidemics--North America--History.
Indians of North America--Diseases
Indians of North America--Population
Princeton subject headings:
Diseases and history--North America.
Epidemics--North America--History.
Indians of North America--Diseases.
Indians of North America--Population.