G Katritsis (Presenting Author) – Imperial College London, London; V Luther – Imperial College London, London; S Jamil-Copley – Nottingham University Hospitals Trust, Nottingham; M Koa-Wing – Imperial College Healthcare NHS Trust, London; Z Whinnett – Imperial College London, London; N Qureshi – Imperial College Healthcare NHS Trust, London; FS Ng – Imperial College London, London; P-B Lim – Imperial College Healthcare NHS Trust, London; L Malcolme-Lawes – Imperial College Healthcare NHS Trust, London; N Cortez-Dias – Hospital De Santa Maria, Lisbon; L Carpinteiro – Hospital De Santa Maria, Lisbon; J de Sousa – Hospital De Santa Maria, Lisbon; R Martin – Newcastle Hospitals NHS Foundation Trust, Newcastle; S Murray – Newcastle Hospitals NHS Foundation Trust, Newcastle; M Das – Newcastle Hospitals NHS Foundation Trust, Newcastle; A Chow – Queen Mary University London and Barts Health NHS Trust, London; NS Peters – Imperial College London, London; NWF Linton – Imperial College London, London; P Kanagaratnam – Imperial College London, London