1. Center for Health Evaluation and Outcome Sciences (CHÉOS), Providence Health Care and University of British Columbia
2. Department of Statistics, University of British Columbia, Canada
3. Department of Medicine, Division of Neurology and Centre for Brain Health, University of British Columbia, Canada
4. ‘The BeAMS Study, Long-term Benefits and Adverse Effects of Beta-interferon for Multiple Sclerosis’: Shirani A.; Zhao Y.; Evans C.; Kingwell E.; van der Kop M.L.; Oger J.