RT Journal T1 LUng screening study to test popular ct scans JF JAMA JO JAMA YR 2002 FD October 9 VO 288 IS 14 SP 1705 OP 1706 DO 10.1001/jama.288.14.1705 UL http://dx.doi.org/10.1001/jama.288.14.1705 AB