1. Fife Hand Clinic, Department of Orthopaedic Surgery, NHS Fife, UK
2. Department of Translational Medicine-Hand Surgery, Lund University, Malmö, Sweden
3. Department of Hand Surgery, Skåne University Hospital, Malmö, Sweden
4. Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
5. Upper Limb Unit, Wrightington Hospital, Wigan, UK
6. University of Texas at Austin Dell Medical School, Austin, TX, USA
7. Department of Plastic Surgery, University of Groningen, Groningen, The Netherlands
8. Institute for Hand and Plastic Surgery, Oldenburg, Germany