Protective value of influenza vaccine assayed in swine.
J W
JW
BEARD
I W
IW
McLEAN
D
D
BEARD
D000818:Animals; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human; D013552:Swine
D007252:Influenza Vaccines
INFLUENZA/immunity--in animals