CM Pearman (Presenting Author) – Liverpool Heart and Chest Hospital, Liverpool, UK; NC Denham – The University of Manchester, Manchester, UK; WY Ding – Liverpool Heart and Chest Hospital, Liverpool, UK; SM Modi – Liverpool Heart and Chest Hospital, Liverpool, UK; D Todd – Liverpool Heart and Chest Hospital, Liverpool, UK; MCS Hall – Liverpool Heart and Chest Hospital, Liverpool, UK; S Mahida – Liverpool Heart and Chest Hospital, Liverpool, UK