RT Journal Article SR Electronic T1 Airwaves JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 845 OP 845 DO 10.1136/thorax-2022-219487 VO 77 IS 9 A1 Mark Griffiths A1 Cecilia M O'Kane A1 Jennifer K Quint YR 2022 UL http://thorax.bmj.com/content/77/9/845.abstract AB