TI - CUrrent comment PT - JOUR DP - 1949 TA - Journal of the American Medical Association pages = {878}, VI - 140 IP - 10 AID - 10.1001/jama.1949.02900450028011 [doi] 4100 - http://dx.doi.org/10.1001/jama.1949.02900450028011 SO - Journal of the American Medical Association July 9, 1949 140(10):878