1. Steadman Philippon Research Institute, Vail, Colorado, USA
2. Department for Shoulder and Elbow Surgery, Center for Musculoskeletal Surgery, Charité-University Medicine Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
3. The Steadman Clinic, Vail, Colorado, USA
4. Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand