Authors: M Chumakov; M Voroshilova; L Shindarov; I Lavrova; L Gracheva; G Koroleva; S Vasilenko; I Brodvarova; M Nikolova; S Gyurova; M Gacheva; G Mitov; N Ninov; E Tsylka; I Robinson; M Frolova; V Bashkirtsev; L Martiyanova; V Rodin Journal: Arch Virol Date: 1979 Impact factor: 2.574