TI - QUestions and answers PT - JOUR DP - 1968 TA - JAMA pages = {1147-1148}, VI - 203 IP - 13 AID - 10.1001/jama.1968.03140130059029 [doi] 4100 - http://dx.doi.org/10.1001/jama.1968.03140130059029 SO - JAMA March 25, 1968 203(13):1147