1. Department of Psychosomatic Medicine and Psychotherapy; LWL-University Hospital, Ruhr-University Bochum; Germany
2. Department of Public Health and Primary Care; University of Cambridge; UK
3. Department of Child and Adolescent Psychiatry; LWL-University Hospital Ruhr-University Bochum; Germany
4. Department of Clinical Psychology and Psychotherapy; University of Osnabrück; Germany
5. Department of Sports Medicine and Sports Medicine and Sports Nutrition; Ruhr-University Bochum; Germany
6. Department of Psychology, School of Philosophy, Psychology, and Language Sciences; University of Edinburgh; Edinburgh, UK