TI - MEdical news PT - JOUR DP - 1919 TA - Journal of the American Medical Association pages = {1626-1631}, VI - 72 IP - 22 AID - 10.1001/jama.1919.02610220044020 [doi] 4100 - http://dx.doi.org/10.1001/jama.1919.02610220044020 SO - Journal of the American Medical Association May 31, 1919 72(22):1626