1. McMaster University and Chronic Pain Centre of Excellence for Canadian Veterans, Hamilton, Ontario, Canada (J.W.B.)
2. McMaster University, Hamilton, Ontario, Canada (B.S., Y.O., E.C., S.A.R., P.E., S.T.N., W.Y., A.L., S.H.A., S.C., R.C., R.L.M., K.A., A.P., Y.S., A.D., G.H.G.)
3. Stanford University, Stanford, California (A.G.)
4. University of British Columbia, Vancouver, British Columbia, Canada (C.M.)
5. University of Toronto, Toronto, Ontario, Canada (P.J.H., A.A., K.C.)
6. McMaster University, Hamilton, and OrthoEvidence, Burlington, Ontario, Canada (Y.C.)
7. McMaster University, Hamilton, Ontario, Canada, and University of Antioquia, Medellin, Colombia (I.D.F.)
8. University at Buffalo, Buffalo, New York (S.B.)
9. University of Limerick, Limerick, Ireland (L.S.)
10. Kerman University of Medical Sciences, Kerman, Iran (B.Z.)