TI - PAris PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {572-574}, VI - 92 IP - 7 AID - 10.1001/jama.1929.02700330056020 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02700330056020 SO - Journal of the American Medical Association February 16, 1929 92(7):572