TI - MEdical news PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1131-1135}, VI - 92 IP - 13 AID - 10.1001/jama.1929.02700390101011 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02700390101011 SO - Journal of the American Medical Association March 30, 1929 92(13):1131