1. Department of Sport; Exercise and Health; University of Basel; Basel Switzerland
2. Medical School Hamburg; Hamburg Germany
3. Swiss Concussion Center (SCC) and Schulthess Clinic; Zurich Switzerland
4. Institute of Sports and Preventive Medicine; Saarland University; FIFA-Medical Centre of Excellence; Saarbrücken Germany
5. Department of Orthopaedics; 1 Faculty of Medicine of Charles University and Hospital Na Bulovce; FIFA-Medical Centre of Excellence; Prague Czech Republic
6. Department of Public and Occupational Health; EMGO Institute for Health and Care Research; VU University Medical Center; Amsterdam The Netherlands
7. Department of Neurology; Interdisciplinary Center for Vertigo and Neurological Visual Disorders; University Hospital & University of Zurich; Zurich Switzerland