[Differential diagnosis of Marek's disease and the sanitation of poultry farms].
D000818:Animals; D002645:Chickens; D003937:Diagnosis, Differential; D008380:Marek Disease / Q000175:diagnosis* / Q000517:prevention & control; D011201:Poultry Diseases / Q000175:diagnosis*; D012499:Sanitation; D014586:USSR
Differentsial'naia diagnostika bolezni Mareka i sanatsiia ptitseferm.