TI - PAris PT - JOUR DP - 1929 TA - Journal of the American Medical Association pages = {1775-1776}, VI - 92 IP - 21 AID - 10.1001/jama.1929.02700470051023 [doi] 4100 - http://dx.doi.org/10.1001/jama.1929.02700470051023 SO - Journal of the American Medical Association May 25, 1929 92(21):1775