1. Biostatistics Department, University of Liverpool, Liverpool, England
2. Clinical Trials Research Centre, University of Liverpool, Liverpool, England
3. Newcastle University, Newcastle, England
4. Currently with Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, England
5. Edinburgh University, Edinburgh, Scotland
6. University of Oxford, Oxford, England
7. UCL Comprehensive Clinical Trials Unit, London, England
8. Centre for Statistics in Medicine, University of Oxford, Oxford, England
9. University of Nottingham, Nottingham, England
10. Janssen Research & Development LLC, Raritan, New Jersey
11. Johnson & Johnson, Titusville, New Jersey
12. Luxembourg Institute of Health, Strassen, Luxembourg
13. Clinical Trials Consulting & Training Limited, Buckingham, England
14. Medicines and Healthcare Products Regulatory Agency, London, England
15. BMJ, London, England