1. Department of Industrial Engineering, School of Engineering and Architecture; Alma Mater Studiorum − Università di Bologna; Bologna Italy
2. Aesculap AG Research and Development; Am Aesculap-Platz; Tuttlingen Germany
3. Department of Orthopaedic Surgery, Physical Medicine and Rehabilitation; Ludwig Maximilian University, Campus Grosshadern; Munich Germany
4. Orthopädische Klinik Markgröningen; Clinic for Joint Replacement; General and Rheumatic Orthopaedics; Ludwigsburg Germany