TI - CUrrent comment PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {1276}, VI - 139 IP - 18 AID - 10.1001/jama.1949.02900350038013 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900350038013 SO - Journal of the American Medical Association April 30, 1949 139(18):1276