1. Foundation of Research and Technology Hellas, Institute of Applied and Computational Mathematics, Voutes, Crete, Greece
2. Department of Orthopaedics, Athens University Medical School, Attikon General University Hospital, Athens, Greece
3. Biostatistics Laboratory, University of Crete, Voutes, Crete, Greece
4. Orthopaedic Department, University Hospital of Heraklion, University of Crete, Voutes, Crete, Greece
5. Clinic of Sports Medicine, Medical Centre of Athens, Athens, Greece