1. University of Ottawa, Ottawa, Ontario, Canada
2. McMaster University, Hamilton, Ontario, Canada
3. Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau-CIBERESP), Barcelona, Spain
4. Dutch College of General Practitioners, Utrecht, the Netherlands
5. Imperial College London, St Mary’s Hospital, London, United Kingdom
6. Département Cancer et Environnement, Centre Léon Bérard, Lyon Cedex 08, France
7. Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
8. North York General Hospital, Toronto, Ontario, Canada
9. Institute of Applied Health Sciences, McMaster University, Hamilton, Ontario, Canada
10. American College of Physicians, Philadelphia, Pennsylvania
11. Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada
12. Department of Pediatrics, University of Antioquia, Medellín, Colombia