TI - MEdical news PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {967-969}, VI - 140 IP - 11 AID - 10.1001/jama.1949.02900460037014 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900460037014 SO - Journal of the American Medical Association July 16, 1949 140(11):967