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Blalock JE, Baron S.Blalock JE, et al. Among authors: baron s.J Gen Virol. 1979 Feb;42(2):363-72. doi: 10.1099/0022-1317-42-2-363.J Gen Virol. 1979.PMID: 217961
Billiau A, Heremans H, Allens PT, Baron S, de Somer P.Billiau A, et al. Among authors: baron s.Arch Virol. 1978;57(3):205-20. doi: 10.1007/BF01315085.Arch Virol. 1978.PMID: 79409