1. University of Nottingham; Department of Academic Orthopaedics, Trauma and Sports Medicine, School of Medicine; Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine Room WC1375, C Floor, West Block, Queen's Medical Centre, Derby Road Nottingham UK NG7 2UH
2. Teesside University; Health and Social Care Institute; Middlesbrough Tees Valley UK TS1 3BA
3. Cairo University; KasrAlAiny School of Medicine; Cairo Egypt