@article {hdsg81,
	title = {Infectivity of respiratory syncytial virus by various routes of inoculation},
	journal = {Infection and Immunity},
	volume = {33},
	year = {1981},
	pages = {3},
	author = {Hall, C. B. and Douglas, R. G. and Schnabel, K. C. and Geiman, J. M.}
}
