Columbia subject headings:
Harvard subject headings:
Medicine--Germany--History--19th century.
Medicine--Norway--History--19th century.
Physicians--Germany--History--19th century.
Physicians--Norway--History--19th century.
Princeton subject headings:
Medicine--Germany--History--19th century.
Medicine--Norway--History--19th century.
Physicians--Germany--History--19th century.
Physicians--Norway--History--19th century.