RT Journal Article SR Electronic T1 From the author: JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 723 OP 723 DO 10.1183/09031936.00144410 VO 37 IS 3 A1 S. Miwa YR 2011 UL http://erj.ersjournals.com/content/37/3/723.2.abstract AB