TI - MEdical news PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {617-622}, VI - 93 IP - 8 AID - 10.1001/jama.1929.02710080043021 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710080043021 SO - Journal of the American Medical Association August 24, 1929 93(8):617