Columbia subject headings:
Harvard subject headings:
Jewish physicians--History--Congresses.
Jewish physicians--History.
Jews, Portuguese--Congresses.
Jews, Portuguese.
Jews--Civilization--Influence.
Jews--Portugal--Intellectual life--Congresses.
Jews--Portugal.
Judaism and culture--History--Congresses.
Judaism and culture--History.
Travel--History
Princeton subject headings:
Jews--Portugal--Civilization.
Medicine--Portugal--History.
Portugal--Civilization.