1. Berkshire Healthcare NHS Trust, UK.; Berkshire Traumatic Stress Service; Erleigh Road Clinic 25 Erleigh Road Reading Berks UK RG1 5LR
2. Cardiff University; Department of Psychological Medicine; Monmouth House, University Hospital of Wales Heath Park Cardiff UK CF14 4XW
3. University of Bristol; Academic Unit of Psychiatry, Community Based Medicine; Cotham House, Cotham Hill Bristol Avon UK BS6 6JL
4. Guy's, King's & St Thomas School of Medicine & Institute of Psychiatry; Academic Dept of Psychological Medicine; 103 Denmark Hill London UK SE5 8AF