TI - QUestions and answers PT - JOUR DP - 1959 TA - Journal of the American Medical Association pages = {92-98}, VI - 169 IP - 1 AID - 10.1001/jama.1959.03000180094035 [doi] 4100 - http://dx.doi.org/10.1001/jama.1959.03000180094035 SO - Journal of the American Medical Association January 3, 1959 169(1):92