1. Aldermoor Health Centre, University of Southampton; Primary Care and Population Sciences, Faculty of Medicine; Aldermoor Close Southampton UK SO16 5ST
2. University of York; Department of Health Sciences; Seebohm Rowntree Building York UK YO10 5DD
3. University of Bristol; Centre for Academic Mental Health, School of Social and Community Medicine; Oakfield House Oakfield Grove Bristol UK BS8 2BN
4. University Hospital Southampton; Southampton UK
5. University of Southampton; Faculty of Medicine; Aldermoor Health Centre, Aldermoor Close Southampton UK SO16 5ST
6. University Medical Center Hamburg-Eppendorf; Department of Medical Psychology; Hamburg Germany
7. Leiden University; Institute of Psychology; Wassenaarseweg 52 Leiden Netherlands 2333 AK