TI - CUrrent comment PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {1220}, VI - 140 IP - 15 AID - 10.1001/jama.1949.02900500028012 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900500028012 SO - Journal of the American Medical Association August 13, 1949 140(15):1220