University College London, London, United Kingdom
Royal Liverpool University Hospital, Liverpool, United Kingdom
University College London Hospital (UCLH), London, United Kingdom
Royal Hallamshire Hospital, Sheffield, United Kingdom
National Hospital for Neurology and Neurosurgery, London, United Kingdom
University College Hospital, London, United Kingdom
Beatson West of Scotland Cancer Centre, Glasgow, United Kingdom
Royal Bournemouth Hospital, Bournemouth, United Kingdom
Portsmouth Hospitals NHS Trust, Portsmouth, United Kingdom
East Kent Hospitals University NHS Foundation Trust, Canterbury, United Kingdom
University College London Hospitals NHS Foundation Trust, London, United Kingdom
Academic Unit of Respiratory Medicine, Royal Free Hospital, London, United Kingdom
Uppsala Clinial Research Center, Uppsala, Sweden
University College London, London, United Kingdom
Bristol Royal Infirmary, Bristol, England, United Kingdom
Aintree University Hospital, Liverpool, England, United Kingdom
Southampton General Hospital, Southampton, England, United Kingdom
UCL Cancer Institute, London, England, United Kingdom