RT Journal Article SR Electronic T1 Man in the bubble JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 386 OP 386 DO 10.1136/thoraxjnl-2015-207463 VO 71 IS 4 A1 Yu-Huei Li A1 Chung-Kan Peng YR 2016 UL http://thorax.bmj.com/content/71/4/386.abstract AB