TI - ASsociation news PT - JOUR DP - 1939 TA - Journal of the American Medical Association pages = {1971}, VI - 113 IP - 22 AID - 10.1001/jama.1939.02800470047015 [doi] 4100 - http://dx.doi.org/10.1001/jama.1939.02800470047015 SO - Journal of the American Medical Association November 25, 1939 113(22):1971