Columbia subject headings:
Charities, Medical--Pennsylvania--Philadelphia.
Hospitals--Pennsylvania--Philadelphia.
Medicine--Pennsylvania--Philadelphia.
Philadelphia (Pa.)--Statistics, Medical.
Public health--Pennsylvania--Philadelphia.
Harvard subject headings:
Charities, Medical--Pennsylvania--Philadelphia.
Hospitals--Pennsylvania--Philadelphia.
Medicine--Pennsylvania--Philadelphia.
Philadelphia (Pa.)--Statistics, Medical.
Public health--Pennsylvania--Philadelphia.
Princeton subject headings: