1. School of Medicine Cardiff University Cardiff UK
2. School of Healthcare Sciences Cardiff University Cardiff UK
3. Veterans' NHS Wales Cardiff and Vale University Health Board Cardiff UK
4. Centre for Trials Research Cardiff University Cardiff UK
5. Cardiff and Vale University Health Board Cardiff UK
6. Department of Psychiatry Leiden University Medical Center Leiden The Netherlands
7. ARQ Centrum'45 ARQ National Psychotrauma Centre Diemen The Netherlands
8. Department of Psychiatry Amsterdam University Medical Centres Amsterdam The Netherlands