RT Journal Article SR Electronic T1 Authors' response JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 827 OP 828 DO 10.1136/thx.2010.154914 VO 66 IS 9 A1 Koshy, Elizabeth A1 Murray, Joanna A1 Bottle, Alex A1 Sharland, Mike A1 Saxena, Sonia YR 2011 UL http://thorax.bmj.com/content/66/9/827.2.abstract AB