1. Department of Pediatric Surgery and Orthopedics, University Children’s Hospital Regensburg (KUNO), Campus St. Hedwig, FIFA Medical Centre of Excellence, University Medical Centre Regensburg, Steinmetzstrasse 1–3, 93049 Regensburg, Germany
2. Department of Trauma Surgery, FIFA Medical Centre of Excellence, University Medical Centre Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
3. Department of Orthopedics, Olgahospital Stuttgart, Kriegsbergstrasse 62, 70174 Stuttgart, Germany
4. General Medicine Practice, 84034 Landshut, Germany
5. Department of Otorhinolaryngology, Paracelsus University Medical Centre Nuremberg, 90419 Nuremberg, Germany
6. SportDocs Franken, Elisabeth Selbert Platz 1, 90473 Nuremberg, Germany
7. Department of Pediatric Cardiology, University Children’s Hospital Regensburg (KUNO), Campus St. Hedwig, FIFA Medical Centre of Excellence, University Medical Centre Regensburg, Steinmetzstrasse 1–3, 93049 Regensburg, Germany