1. Department of Orthopaedics and Traumatology, San Francesco d'Assisi Hospital, Oliveto Citra, Italy.
2. Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno, Italy.
3. Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi, Italy.
4. Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, Queen Mary University of London, London, England.
5. School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Newcastle-under-Lyme, England.