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Zhdanov VM, Parfanovich MI, Yershov FI, Nikolskaya TA, Kazak NF, Nitavskaya SD, Nagayeva LS, Kukain RA.Zhdanov VM, et al. Among authors: yershov fi.Br Vet J. 1975 Jul-Aug;131(4):499-503. doi: 10.1016/s0007-1935(17)35245-4.Br Vet J. 1975.PMID: 167904No abstract available.