1. Regional Affective Disorders Service, Cumbria Northumberland Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
2. Sport and Exercise Sciences, University of Sunderland, Sunderland, United Kingdom
3. Department of Psychiatry, University of California, San Diego, CA, USA
4. Department of Psychiatry, Psychotherapy, and Psychosomatics, Psychiatric University Hospital Zurich, University of Zurich, Zurich, Switzerland
5. Private Clinic Wyss AG, Münchenbuchsee, Switzerland
6. Adult Psychiatry, Psychiatric Services Grisons, Chur, Switzerland