1. Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK
2. University of Aberdeen, School of Medicine, Medical Science and Nutrition, Aberdeen, UK
3. Addenbrookes Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
4. Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
5. James Paget University Hospitals NHS Foundation Trust, Great, UK
6. University of East Anglia, Norwich Medical School, Athens, Greece
7. St George’s University Hospitals NHS Foundation Trust, London, UK
8. National and Kapodistrian University of Athens, Athens, Greece
9. New Victoria Hospital and Queen Elizabeth University Hospital, Glasgow, UK