TI - MEdical literature abstracts PT - JOUR DP - 1959 TA - Journal of the American Medical Association pages = {242-245}, VI - 171 IP - 2 AID - 10.1001/jama.1959.03010200110022 [doi] 4100 - http://dx.doi.org/10.1001/jama.1959.03010200110022 SO - Journal of the American Medical Association September 12, 1959 171(2):242