[RESEARCH ON AN ATTENUATED VIRUS OF INFECTIOUS BRONCHITIS OF CHICKENS. I. BEHAVIOR OF THE CHICK EMBRYO].
D000818:Animals; D001991:Bronchitis; D002642:Chick Embryo; D002645:Chickens; D003141:Communicable Diseases; D011201:Poultry Diseases; D012106:Research; D014777:Virus Diseases
BRONCHITIS; CHICK EMBRYO; EXPERIMENTAL LAB STUDY; POULTRY DISEASES; VIRUS DISEASES
RICERCHE SU UN VIRUS ATTENUATO DELLA BRONCHITE INFETTIVA DEI POLLI. I. COMPORTAMENTO DELL' EMBRIONE DI POLLO.