Pub Date : 2021-11-01DOI: 10.1136/thorax-2021-btsabstracts.26M. Armstrong, E. Hume, L. Mcneillie, F. Chambers, L. Wakenshaw, G. Burns, K. Heslop-Marshall, I. Vogiatzis
Pub Date : 2021-11-01DOI: 10.1136/thorax-2021-btsabstracts.29R. Barker, LJ Brighton, J. Bayly, J. Walsh, C. Nolan, S. Patel, O. Polgar, J. Wenneberg, S. Kon, J. Wedzicha, M. Maddocks, M. Farquhar, W. Man