TI - PAris PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1000-1002}, VI - 93 IP - 13 AID - 10.1001/jama.1929.02710130040020 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02710130040020 SO - Journal of the American Medical Association September 28, 1929 93(13):1000