1. St. Michael's Hospital and University of Toronto, Toronto, Ontario, Canada (A.C.T., S.E.S.)
2. St. Michael's Hospital, Toronto, Ontario, Canada (E.L., W.Z.)
3. University of Toronto, Toronto, Ontario, Canada (K.K.O., H.C.)
4. Northeastern University, Boston, Massachusetts (D.L.)
5. Ottawa Hospital Research Institute, Ottawa, Ontario, Canada (D.M., C.G.)
6. University of South Australia and University of Adelaide, Adelaide, South Australia, Australia (M.D.P.)
7. Royal College of Physicians and Surgeons of Canada, Ottawa, Ontario, Canada (T.H.)
8. Canadian Agency for Drugs and Technologies in Health, Ottawa, Ontario, Canada (L.W., T.C.)
9. RAND Corporation, Santa Monica, California (S.H.)
10. American University of Beirut, Beirut, Lebanon (E.A.A.)
11. Agency for Healthcare Research and Quality, Rockville, Maryland (C.C.)
12. University of Ottawa, Ottawa, Ontario, Canada (J.M.)
13. University of York, York, United Kingdom (L.S.)
14. University of Alberta, Edmonton, Alberta, Canada (L.H.)
15. BMJ Open, London, United Kingdom (A.A.)
16. McMaster University, Hamilton, Ontario, Canada (M.G.W.)
17. Norwegian Institute of Public Health, Oslo, Norway, and South African Medical Research Council, Cape Town, South Africa (S.L.)
18. Queen's University, Kingston, Ontario, Canada (C.M.G.)
19. Dalhousie University, Halifax, Nova Scotia, Canada (M.T.M.)
20. World Health Organization, Geneva, Switzerland (E.V.L., Ö.T.)
21. Cochrane, London, United Kingdom (K.S.)
22. King's College London, London, United Kingdom (J.M.)