2 R&D Department, Sussex Education Centre, Sussex Partnership NHS Foundation Trust, Nevill Avenue, Brighton & Hove, BN3 7HZ, UK.
3 Coventry and Warwickshire Partnership NHS Trust, Coventry, UK.
4 Birmingham and Solihull Mental Health NHS Foundation Trust, Birmingham, UK.
5 University Hospitals Sussex, Eastern Road, Brighton and Hove, BN2 5BE, UK.
6 Nuffield Department of Population Health, Health Economics Research Centre, University of Oxford, Oxford, UK.
7 Extreme Environments Laboratory, School of Sport, Health and Exercise Sciences, University of Portsmouth, Spinnaker Building, Portsmouth, PO1 2ER, UK.