TI - NEws and comment PT - JOUR DP - 1959 TA - A.M.A. Journal of Diseases of Children pages = {540-544}, VI - 98 IP - 4 AID - 10.1001/archpedi.1959.02070020542005 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1959.02070020542005 SO - A.M.A. Journal of Diseases of Children October 1, 1959 98(4):540