RT Journal Article SR Electronic T1 Busulphan lung: clinical features. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 257 OP 257 DO 10.1136/thx.25.2.257-a VO 25 IS 2 A1 Littler, W A YR 1970 UL http://thorax.bmj.com/content/25/2/257.2.abstract AB