1. Department of Clinical Psychology, Institute of Primary Care & Mental Health, University of Liverpool, Liverpool L69 3BX, UK
2. Liverpool Hospitals NHS Foundation Trust, Liverpool L7 8YE, UK
3. Department of Psychology, Institute of Population Health, University of Liverpool, Liverpool L69 3BX, UK
4. Merseycare NHS Foundation Trust, Liverpool L34 1PJ, UK
5. School of Medicine, Institute of Life Course & Medical Sciences, Faculty of Health & Life Sciences, University of Liverpool, Liverpool L69 3BX, UK
6. York Hospitals NHS Foundation Trust, York YO31 8HE, UK