TI - RIo de janeiro PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1160-1161}, VI - 93 IP - 15 AID - 10.1001/jama.1929.02710150052021 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710150052021 SO - Journal of the American Medical Association October 12, 1929 93(15):1160