RT Journal Article SR Electronic T1 Comparison against baseline in randomised control trials (again) JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1376 OP 1376 DO 10.1183/09031936.00098414 VO 44 IS 5 A1 John D. Blakey YR 2014 UL http://erj.ersjournals.com/content/44/5/1376.1.abstract AB