Columbia subject headings:
Family medicine--United States.
Medicine--Specialties and specialists--United States.
Physicians (General practice)--United States.
Harvard subject headings:
Family medicine--United States.
Medicine--Specialties and specialists--United States
Physicians (General practice)--United States.
Princeton subject headings:
Family medicine--United States.
Medicine--Specialties and specialists--United States.
Physicians (General practice)--United States.