by Ballard, J E, Koepsell, T D, Rivara, F
Published in American journal of epidemiology (01.01.1992)

by Jane E. Ballard, Koepsell, Thomas D., Rivara, Frederick P., Gerald Van Belle
Published in Public health reports (1974) (01.07.1992)

by Ballard, J E, Liu, J, Uberuagua, D, Mustin, H D, Sugarman, J R
Published in The Joint Commission journal on quality improvement (01.08.1997)

by Onoralo, Ida M., Morens, David M., Ballard, Jane E., Howry, Cherie L., Stewart, John A., Allard, Jack
Published in The Journal of infectious diseases (01.12.1984)