TI - ORganization section PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {39}, VI - 139 IP - 1 AID - 10.1001/jama.1949.02900180041014 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900180041014 SO - Journal of the American Medical Association January 1, 1949 139(1):39