TI - MEdical news PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {945-948}, VI - 139 IP - 14 AID - 10.1001/jama.1949.02900310049016 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900310049016 SO - Journal of the American Medical Association April 2, 1949 139(14):945