G. Simpson

发表

J. Pennington, R. Myerowitz, N. Gibbons, 1976, Journal of the American Medical Association (JAMA).

P. Silverman, G. Simpson, R. Schenkel, 1973, Bulletin of the World Health Organization.

M. Egger, E. Stinson, J. Remington, 1981, Reviews of infectious diseases.