TI - ORganization section PT - JOUR DP - 1939 TA - Journal of the American Medical Association pages = {63-67}, VI - 113 IP - 1 AID - 10.1001/jama.1939.02800260065020 [doi] 4100 - http://dx.doi.org/10.1001/jama.1939.02800260065020 SO - Journal of the American Medical Association July 1, 1939 113(1):63