1. Atlas Institute for Veterans and Families, Ottawa, ON K1Z 7K4, Canada
2. National Police Federation, Ottawa, ON K2P 1P1, Canada
3. Heroes in Mind Advocacy and Research Consortium, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, AB T6G 2R3, Canada
4. Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada