RT Journal Article SR Electronic T1 High resolution computed tomography in asthma JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 308 OP 314 DO 10.1136/thx.53.4.308 VO 53 IS 4 A1 Alan N Mclean A1 Michael W Sproule A1 Michael D Cowan A1 Neil C Thomson YR 1998 UL http://thorax.bmj.com/content/53/4/308.abstract AB