RT Journal Article SR Electronic T1 Hypoxaemia, sport and polycythaemia: a case from Imperial College London JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 601 OP 603 DO 10.1136/thoraxjnl-2014-206381 VO 70 IS 6 A1 Wakana Yasuda A1 James E Jackson A1 D Mark Layton A1 Claire L Shovlin YR 2015 UL http://thorax.bmj.com/content/70/6/601.abstract AB