TI - MEdical literature abstracts PT - JOUR DP - 1959 TA - Journal of the American Medical Association pages = {1148-1159}, VI - 171 IP - 8 AID - 10.1001/jama.1959.03010260104025 [doi] 4100 - http://dx.doi.org/10.1001/jama.1959.03010260104025 SO - Journal of the American Medical Association October 24, 1959 171(8):1148