*Department of Orthopaedics, University Clinic Aachen, RWTH Aachen University Clinic, Aachen, Germany
†Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi (SA), Italy
‡School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Stoke on Trent
§Centre for Sports and Exercise Medicine, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, England
Disclosure: The authors declare no conflicts of interest.
Reprints: Nicola Maffulli, MD, MS, PhD, FRCP, FRCS(Orth), Queen Mary University of London, Mile End Hospital, 275 Bancroft Road, London E1 4DG, England.