TI - QUestions and answers PT - JOUR DP - 1969 TA - JAMA pages = {2290-2292}, VI - 207 IP - 12 AID - 10.1001/jama.1969.03150250120041 [doi] 4100 - http://dx.doi.org/10.1001/jama.1969.03150250120041 SO - JAMA March 24, 1969 207(12):2290