Columbia subject headings:
Harvard subject headings:
Bacteriology--Research--France--History.
Bacteriology--Research--Germany--History.
Bacteriology--Research--Russia (Federation)--History.
Immunity--Research--History.
Immunology--Research--France--History.
Immunology--Research--Germany--History.
Immunology--Research--Russia (Federation)--History.
Metchnikoff, Elie, 1845-1916. Correspondence.
Princeton subject headings:
Bacteriology--History.
Immunology--History.