Viral infections of the chick embryo respiratory tract; control observations.
J H
JH
FODDEN
A J
AJ
RHODES
D000818:Animals; D002642:Chick Embryo; D011200:Poultry; D011201:Poultry Diseases; D012137:Respiratory System; D014777:Virus Diseases; D014780:Viruses
FOWL/diseases; VIRUSES/diseases--in animals