1 Department of Counseling and School Psychology, University of Massachusetts Boston, Boston, MA 02125, USA. Electronic address: lisa.cosgrove@umb.edu.
2 School of Health Sciences, City, University of London, London, UK.
3 Depression Research Unit, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
4 UK Royal College of General Practitioners, London, UK.
5 Service User Research Enterprise, King's College London, London, UK.
6 Survivor Research, Sutton, UK.
7 Department of Family Medicine, Tufts University School of Medicine, Boston, MA, USA.