@article {hcjbk72, title = {Characterization of the infectious unit for man of two respiratory viruses. Proceedings of the Society for Experimental Biology and Medicine}, journal = {Society for Experimental Biology and Medicine (New York, N.Y.).}, volume = {139}, year = {1972}, pages = {3}, author = {Hamory, B. H. and Couch, R. B. and Douglas R. G. Jr and Black, S. H. and Knight, V.} } @article {1265, title = {The minimal infectious dose of adenovirus type 4; the case for natural transmission by viral aerosol.}, journal = {Transactions of the American Clinical and Climatological Association}, volume = {80}, year = {1969}, pages = {205}, url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2441001/}, author = {Couch, R. B. and Knight, V. and Douglas Jr, R. G. and Black, S. H. and Hamory, B. H.} }