@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.}
}
