[The properties of Newcastle disease, infectious bronchitis and fowl laryngotacheitis viruses in a mixed infection].
D000818:Animals; D009521:Newcastle Disease / Q000382:microbiology*; D011201:Poultry Diseases / Q000382:microbiology*; D012141:Respiratory Tract Infections / Q000382:microbiology / Q000662:veterinary*
Svoĭstva virusov N'iukaslskoĭ bolezni, infektsionnogo bronkhita i laringotrakheita ptits, pri smeshannoĭ infektsii.