1. Orthopaedics and Traumatology, PBS Group, Perugia, Italy
2. Department of Orthopaedic and Trauma Surgery, RWTH University Hospital Aachen, Aachen, Germany
3. Department of Orthopaedics and Traumatology, Santa Maria Hospital, Borgo Val di Taro, Italy
4. Department of Orthopaedics and Traumatology, University of Perugia, Italy
5. Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi (SA), Italy
6. Centre for Sports and Exercise Medicine, Mile End Hospital, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
7. School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Thornburrow Drive, Stoke on Trent, United Kingdom