1. Centre for Statistics in Medicine, NDORMS, University of Oxford, Oxford, UK
2. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
3. Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
4. Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Institution, New York, NY, USA
5. Biomedical Ethics, McGill University, Montreal, QC, Canada
6. Biometric Research Program, NCI, Bethesda, MD, USA