TI - QUestions and answers PT - JOUR DP - 1979 TA - JAMA pages = {2206-2207}, VI - 241 IP - 20 AID - 10.1001/jama.1979.03290460066029 [doi] 4100 - http://dx.doi.org/10.1001/jama.1979.03290460066029 SO - JAMA May 18, 1979 241(20):2206