V Boyalla (Presenting Author) – Royal Brompton & Harefield Hospital, London, UK; HR Khan – Royal Brompton & Harefield Hospital, London, UK; S Haldar – Royal Brompton & Harefield Hospital, London, UK; J Zaman – Royal Brompton & Harefield Hospital, London, UK; S Rui – Royal Brompton & Harefield Hospital, London, UK; A Sathishkumar – Royal Brompton & Harefield Hospital, London, UK; M Gill – Royal Brompton & Harefield Hospital, London, UK; T Bahrami – Royal Brompton & Harefield Hospital, London, UK; A De Souza – Royal Brompton & Harefield Hospital, London, UK; T Wong – Royal Brompton & Harefield Hospital, London, UK