1. Department of Orthopedic Surgery and Traumatology Kantonsspital Baselland Bruderholz Switzerland
2. Department of Clinical Research, Research Group Michael T. Hirschmann, Regenerative Medicine and Biomechanics University of Basel Basel Switzerland
3. Department of Trauma, Hand and Reconstructive Surgery University of Muenster Muenster Germany
4. Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health University of Brescia Brescia Italy
5. Department of Bone and Joint Surgery Spedali Civili Brescia Italy
6. Blue Cross of Western Pennsylvania Professor and Chief Sports Medicine, UPMC Freddie Fu Sports Medicine Center University of Pittsburgh Pittsburgh Pennsylvania USA