Comments on: Some aspects of the morphology of the Bittner virus, by John K. Clarke and Joseph T. Attridge, Department of Microbiology, The Queen's University of Belfast, Belfast, BT12 6BN, Northern Ireland. J Nat Cancer Inst 44: 755-762, 1970.
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D008324:Mammary Tumor Virus, Mouse / Q000648:ultrastructure*