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23. Editorial note and summary of classification of animal viruses, 1967. Melnick JL. Prog Med Virol; 1967; 9():483-5. PubMed ID: 4965211 [No Abstract] [Full Text] [Related]
24. Recent advances in classification of viruses of vertebrates. Nász I, Lengyel A. Ther Hung; 1981; 29(1):5-14. PubMed ID: 6821328 [No Abstract] [Full Text] [Related]
28. "The classification of viruses; why, when, and how". Fenner F. Aust J Exp Biol Med Sci; 1974 Apr; 52(2):223-40. PubMed ID: 4212523 [No Abstract] [Full Text] [Related]