1. Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
2. School of Medicine, Cardiff University, University Hospital of Wales, Cardiff, United Kingdom
3. Department of Medical Biochemistry and Immunology & Toxicology, Cardiff and Vale University Health Board, Cardiff, United Kingdom
4. Cobalz Limited, Chester, United Kingdom
5. Swansea Trials Unit, Swansea University Medical School, Swansea, United Kingdom
6. Faculty of Social and Life Sciences, Wrexham Glyndwr University, Wrexham, United Kingdom
7. Bangor University
8. University of Liverpool
9. University of York
10. University of Swansea
11. University of Otago