[Etiology and prevention of respiratory diseases in poultry].
D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D011201:Poultry Diseases / Q000517:prevention & control; D012141:Respiratory Tract Infections / Q000209:etiology / Q000517:prevention & control / Q000662:veterinary*; D014586:USSR
K étiologii i profilaktike respiratornykh bolezneĭ ptits.