RT Journal Article SR Electronic T1 Authors' response JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 105 OP 105 DO 10.1136/thoraxjnl-2012-202442 VO 68 IS 1 A1 John K Field A1 David Baldwin A1 Kate Brain A1 Anand Devaraj A1 Tim Eisen A1 Stephen W Duffy A1 David M Hansell A1 Keith Kerr A1 Richard Page A1 Mahash Parmar A1 David Weller A1 David Whynes A1 Paula Williamson YR 2013 UL http://thorax.bmj.com/content/68/1/105.2.abstract AB