Respiratory tract pathology of the B1 strain of Newcastle disease in chickens.
D000400:Air Sacs / Q000473:pathology; D000818:Animals; D002645:Chickens; D008168:Lung / Q000473:pathology; D009521:Newcastle Disease / Q000473:pathology*; D011201:Poultry Diseases / Q000473:pathology*; D012141:Respiratory Tract Infections / Q000473:pathology / Q000662:veterinary*; D014132:Trachea / Q000473:pathology