1. Center of Excellence for Psychosocial and Systemic Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
2. Department of Psychiatry, Harvard Medical School, Boston, MA, USA
3. Department of Psychiatry, Richard L Roudebush VA Medical Center, Indianapolis, IN, USA
4. School of Medicine, Indiana University, Indianapolis, IN, USA
5. School of Psychology, University of Sussex, Brighton, UK
6. Research & Development Department, Sussex Partnership NHS Foundation Trust, Hove, UK