TI - ITaly PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {912-913}, VI - 92 IP - 11 AID - 10.1001/jama.1929.02700370060022 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02700370060022 SO - Journal of the American Medical Association March 16, 1929 92(11):912