Columbia subject headings:
Federal aid to medical education--United States.
Medical education--Law and legislation--United States.
Physicians--Licenses--United States.
Physicians--Supply and demand--United States.
Physicians--United States--Supply and demand.
Harvard subject headings:
Federal aid to medical education--United States.
Medical education--Law and legislation--United States.
Physicians--Licenses--United States.
Physicians--Supply and demand--United States
Princeton subject headings: