TI - QUestions and answers PT - JOUR DP - 1979 TA - JAMA pages = {837-838}, VI - 241 IP - 8 AID - 10.1001/jama.1979.03290340053032 [doi] 4100 - http://dx.doi.org/10.1001/jama.1979.03290340053032 SO - JAMA February 23, 1979 241(8):837