@article {ckgcd69,
	title = {Factors influencing response of volunteers to inoculation with Coxsackie virus A type 21},
	journal = {The American review of respiratory disease},
	volume = {99},
	year = {1969},
	pages = {1},
	author = {Couch, R. B. and Knight, V. and Gerone, P. J. and Cate, T. R. and Douglas, R. G.}
}
@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.}
}
