[CYTOPATHIC CHANGES IN TISSUE CULTURES OF CHICK EMBRYOS OF VARIOUS AGES UNDER THE INFLUENCE OF NEWCASTLE DISEASE VIRUSES].
D000818:Animals; D002642:Chick Embryo; D003588:Cytopathogenic Effect, Viral; D009521:Newcastle Disease; D009522:Newcastle disease virus; D012106:Research; D012107:Research Design; D014776:Virus Cultivation
CHICK EMBRYO; CYTOPATHOGENIC EFFECT, VIRAL; EXPERIMENTAL LAB STUDY; NEWCASTLE DISEASE VIRUS; VIRUS CULTIVATION
TSITOPATICHESKIE IZMENENIIA V KLETKAKH KUL'TURY TKANI KURINYKH 'EMBRIONOV RAZNOGO VOZRASTA PRI VOZDE ISTVII VIRUSA BOLEZNI N'IUKASLA.