Columbia subject headings:
Cardiologists--Russia (Federation)--Biography.
Chazov, E. I.
Harvard subject headings:
Chazov, E. I.
Heads of state--Russia (Federation)
Heads of state--Soviet Union.
Russia (Federation)--Politics and government--1991-
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings: