by Shea, S, Misra, D, Ehrlich, M H, Field, L, Francis, C K
Published in American journal of public health (1971) (01.12.1992)

by Shea, Steven, Misra, Dawn, Ehrlich, Martin H, Field, Leslie, Francis, Charles K
Published in The New England journal of medicine (10.09.1992)

by Gemson, D H, Ashford, A R, Dickey, L L, Raymore, S H, Roberts, J W, Ehrlich, M H, Foster, B G, Ganz, M L, Moon-Howard, J, Field, L S
Published in Archives of internal medicine (1960) (13.11.1995)