TI - JOurnal index PT - JOUR DP - 1959 TA - Journal of the American Medical Association pages = {2205}, VI - 170 IP - 18 AID - 10.1001/jama.1959.03010180057016 [doi] 4100 - http://dx.doi.org/10.1001/jama.1959.03010180057016 SO - Journal of the American Medical Association August 29, 1959 170(18):2205