Journal clubVijayakumar, BavithraAuthor information1 National Heart and Lung Institute, Imperial College London, London, UK 2 Chelsea and Westminster Hospital, London, UK 3 Royal Brompton Hospital, London, UK Dr Bavithra Vijayakumar, Imperial College London National Heart and Lung Institute, London SW3 6LY, UK; [email protected]Thorax 76(12):p 1266, December 2021. | DOI: 10.1136/thoraxjnl-2021-218369Copyright © 2021 BMJ Publishing Group Ltd & British Thoracic Society