TI - RIo de janeiro PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1573-1574}, VI - 93 IP - 20 AID - 10.1001/jama.1929.02710200057022 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710200057022 SO - Journal of the American Medical Association November 16, 1929 93(20):1573