Columbia subject headings:
Harvard subject headings:
Africa--Emigration and immigration.
Europe--Emigration and immigration
Physicians, Foreign--Employment--Europe.
Physicians, Foreign--Recruiting--Europe.
Physicians, Foreign--Supply and demand--Europe.
Princeton subject headings:
Africa--Emigration and immigration.
Africans--Europe--History.
Black people in medicine--Europe--History.
Europe--Emigration and immigration.
Physicians--Europe--History.