Columbia subject headings:
Medicine--Soviet Union--History--19th century.
Physicians--Soviet Union--History--19th century.
Russia--Politics and government--1801-1917.
Harvard subject headings:
Medicine--Russia--History--19th century.
Medicine--Soviet Union--History--19th century.
Physicians--Russia--History--19th century.
Physicians--Soviet Union--History--19th century.
Russia--Politics and government--1801-1917
Princeton subject headings:
Medicine--Russia--History--19th century.
Physicians--Russia--History--19th century.
Russia--Politics and government--1801-1917.