Leiden University Medical Center (LUMC), Leiden, Netherlands
Royal Free Hospital, London, United Kingdom
Champalimaud Cancer Center, Lisbon, Portugal
Velindre Cancer Centre, Wales, United Kingdom
University College London Hospitals NHS Foundation Trust, London, United Kingdom
Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
Royal Victoria Hospital Belfast, Belfast, Northern Ireland, United Kingdom
Southampton General Hospital, Southampton, Hampshire, United Kingdom
Alder Hey Hospital, Liverpool, Merseyside, United Kingdom
Basildon & Thurrock University Hospitals NHS Foundation Trust, Basildon, Essex, United Kingdom
University College London Hospital NHS Foundation Trust, London, United Kingdom
Southend University Hospital NHS Foundation Trust, Westcliff-on-Sea, Essex., United Kingdom
University College London, London, United Kingdom
The National Hospital for Neurology and Neurosurgery, London, United Kingdom
UCL Institute of Neurology, London, United Kingdom
University of Newcastle, Newcastle, United Kingdom