[1] Mem Univ Newfoundland, Clin Epidemiol, St John, NF, Canada
[2] Memo Rial Univ Newfoundland, Dept Psychol, 230 Elizabeth Ave, St John, NF A1B 3X9, Canada
[3] McMaster Univ, Dept Anesthesia, Hamilton, ON, Canada
[4] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[5] McMaster Univ, Michael G DeGroote Inst Pain Res & Care, Hamilton, ON, Canada
[6] McMaster Univ, Michael G DeGroote Ctr Med Cannabis Res, Hamilton, ON, Canada
[7] Univ Calgary, Dept Psychol, Calgary, AB, Canada
[8] Royal Ottawa Mental Hlth Ctr, Ottawa, ON, Canada
[9] Univ Ottawa, Dept Psychiat, Ottawa, ON, Canada
[10] Univ Ottawa, Inst Mental Hlth Res, Ottawa, ON, Canada
[11] Canadian Injured Workers Alliance, Thunder Bay, ON, Canada
[12] Mem Univ Newfoundland, Dept Anesthesia, St John, NF, Canada
[13] Univ Quebec Montreal, Dept Psychol, Montreal, PQ, Canada
[14] Hop Sacre Coeur Montreal, Ctr Integree Univ Sante & Serv Sociaux Nord Ile, Montreal Behav Med Ctr MBMC, Montreal, PQ, Canada
[15] Ottawa Hosp, Res Inst, Ottawa, ON, Canada
[16] Ottawa Hosp, Dept Psychol, Ottawa, ON, Canada
[17] Ottawa Hosp, Pain Clin, Ottawa, ON, Canada
[18] Univ Ottawa, Dept Anesthesiol & Pain Med, Ottawa, ON, Canada