1. Schulthess Klinik, Zurich, Switzerland
2. Capio Private Hospital, Hellerup, Denmark
3. Comprehensive Hand Center, Michigan Medicine, Ann Arbor, MI, USA
4. Department of Plastic Surgery, Hand Surgery and Burns, Department of Biomedical and Clinical Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
5. Aspetar Orthopedic and Sports Medicine Hospital, Doha, Qatar
6. Karolinska Institutet, Department of Clinical Science and Education, Stockholm, Sweden
7. Affiliated Hospital of Nantong University, Nantong, China
8. AZ Monica Hospital, Antwerp, Belgium