TI - ORganization section PT - JOUR DP - 1939 TA - Journal of the American Medical Association pages = {2293-2333}, VI - 112 IP - 22 AID - 10.1001/jama.1939.02800220059019 [doi] 4100 - http://dx.doi.org/10.1001/jama.1939.02800220059019 SO - Journal of the American Medical Association June 3, 1939 112(22):2293