1. Orthopaedic Hand and Upper Extremity Service, Yawkey Center, Massachusetts General Hospital, Harvard Medical School and University of Amsterdam Medical School, 55 Fruit Street, 02114, Boston, MA USA
2. VU Medical Center Orthopaedic Residency Program (PGY1), Amsterdam The Netherlands
3. Orthotrauma Research Center Amsterdam, University of Amsterdam Orthopaedic Residency Program (PGY4), Amsterdam The Netherlands
4. Department of Orthopaedic Surgery, Academic Medical Center Amsterdam, Amsterdam The Netherlands
5. Shoulder and Elbow Unit Orthopaedic Surgery, Amphia Hospital, Breda The Netherlands
6. Shoulder and Elbow Unit Orthopaedic Surgery, Onze Lieve Vrouwe Gasthuis, Amsterdam The Netherlands