RT Journal Article SR Electronic T1 Commentary JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1016 OP 1017 DO 10.1136/thx.50.9.1016 VO 50 IS 9 A1 Andrew J Peacock YR 1995 UL http://thorax.bmj.com/content/50/9/1016.abstract AB