TI - MEdical news PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1228-1233}, VI - 93 IP - 16 AID - 10.1001/jama.1929.02710160042017 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710160042017 SO - Journal of the American Medical Association October 19, 1929 93(16):1228