RT Journal Article SR Electronic T1 Computed Tomography of the Chest. A Teaching File JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 948 OP 948 DO 10.1136/thx.43.11.948 VO 43 IS 11 A1 JTM YR 1988 UL http://thorax.bmj.com/content/43/11/948.1.abstract AB