Edited by Rudy Sinha-ray, Consultant Physician in Respiratory & General Internal Medicine, University College Hospital London, UK, and Daniel Furmedge, Consultant Physician in Geriatric & General Internal Medicine Honorary Clinical Lecturer in Medical Education, King's College Hospital NHS Foundation Trust, UKContributors:Thomas Coryndon, Emergency Medicine Consultant, University College London Hospital, UK Daniel Furmedge, Consultant Physician in Geriatric & General Internal Medicine, Honorary Clinical Lecturer in Medical Education, Guy's and St Thomas' Hospital NHS foundation trust, London, UKDoug Fink, Registrar in Infectious Diseases and General Internal Medicine, Hospital for Tropical Diseases, University College London Hospital, UK Shelly Griffiths, Specialist Registrar Colorectal Surgery, Gloucestershire Royal Hospital, UK James Harnett, University College London Hospital, London, UKChris Parnell, University College London Hospital, London, UKRoss Paterson, Academic Clinical Lecturer in Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, University College London Hospitals Trust, London, UKMaria Phylactou, Academic Clinical Fellow in Endocrinology and Diabetes, North West Thames Imperial College, London, UKRicky Sinharay, SpR Hepatology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, UKRudy Sinharay, Consultant Physician in Respiratory & General Internal Medicine, Imperial College London, UKLaszlo Sztriha, Consultant Neurologist, King's College Hospital, London, UKDominik Vogel, Clinical Fellow in Critical Care, Echocardiography and ECMO, Guy's and St Thomas' NHS Foundation Trust, London, UKWilliam White, SpR Nephrology, Royal Free Hospital, London, UK.