TI - ITaly PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {471-473}, VI - 93 IP - 6 AID - 10.1001/jama.1929.02710060047021 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710060047021 SO - Journal of the American Medical Association August 10, 1929 93(6):471