1. Department of Orthopaedics and Traumatology, University of Rome “Tor Vergata”, “Policlinico Tor Vergata” Foundation, Rome, Italy
2. Head of Department of Physical and Rehabilitation Medicine, Azienda Ospedaliera San Giovanni di Dio e Ruggi d’Aragona, University of Salerno, Italy; Queen Mary University of London, Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, London, UK