AU - Simpson HN TI - BEnjamin waterhouse PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {794}, VI - 141 IP - 11 AID - 10.1001/jama.1949.02910110046024 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02910110046024 SO - Journal of the American Medical Association November 12, 1949 141(11):794