1. King’s Centre for Military Health Research, King’s College London, London, United Kingdom
2. Department of Child and Adolescent Psychiatry, King’s College London, London, United Kingdom
3. Department of Psychological Medicine, King’s College London, London, United Kingdom
4. British Army, London, United Kingdom
5. Combat Stress, Tyrwhitt House, Leatherhead, United Kingdom
6. Division of Health Research, Lancaster University, Lancaster, United Kingdom