Columbia subject headings:
Harvard subject headings:
Epidemics--Southwest, New--History.
Epidemics--Texas--History.
Influenza--Southwest, New--History.
Influenza--Texas--History.
Princeton subject headings:
Epidemics--Southwest, New--History.
Epidemics--Texas--History.
Influenza--Southwest, New--History.
Influenza--Texas--History.