
Percy Trompf (Australian, 1902–1964)

National Institutes of Health (American, 1887-)

Emil Cardinaux (Swiss, 1877–1936)

Anonymous

Anonymous

Anonymous

Anonymous

Anonymous

Ladislaus Eugen Petrovits (Austrian, 1839–1907)

Lith. Van Geleyn (French, 19th/20th century)

U.S. Information Agency (American, 1953-1999)

Centers for Disease Control and Prevention (American, 1946-)

Anonymous

Anonymous

Ludwig Ferdinand Graf (Austrian, 1868–1932)

Anonymous

Anonymous

National Institutes of Health (American, 1887-)

Anonymous

P. Cousturier (French, 19th/20th century)

Anonymous

Anonymous