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Alter, H J., R H. Purcell, J L. Gerin, W T. London, P M. Kaplan, V J. McAuliffe, J. Wagner, e P V. Holland. Transmission of Hepatitis B to Chimpanzees By Hepatitis B Surface Antigen-positive Saliva and Semen. 1977.

Alter, H J., et al. Transmission of Hepatitis B to Chimpanzees By Hepatitis B Surface Antigen-positive Saliva and Semen. 1977.