THE VARIATION OF ANTIGENIC PATTERN AND OF MOUSE VIRULENCE IN AN INFLUENZA VIRUS CULTURE.
Department of Bacteriology and Immunology, Cornell University Medical College, New York, N. Y.
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D000818:Animals; D006801:Humans; D007251:Influenza, Human; D051379:Mice; D009975:Orthomyxoviridae; D014774:Virulence