1. Amsterdam Center of Evidence Based Sports Medicine, Academic Medical Center, Amsterdam, the Netherlands
2. Department of Sports Medicine, Bergman Clinics, Naarden, the Netherlands
3. The Sports Physician Group, Onze Lieve Vrouwe Gasthuis West, Amsterdam, the Netherlands
4. Radboud University Medical Center, Radboud Institute for Health Science, Scientific Institute for Quality of Healthcare, Nijmegen, the Netherlands
5. Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
6. Amsterdam Collaboration for Health and Safety in Sports, Academic Medical Center, Amsterdam, the Netherlands
7. Department of Sports Medicine, Aspetar Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
8. KNLTB, Royal Netherlands Lawn Tennis Association, Amersfoort, the Netherlands