1. Leeds Teaching Hospitals NHS Trust; Department of Plastic and Reconstructive Surgery; Leeds West Yorkshire UK LS1 3EX
2. University of Leeds; Faculty of Medicine and Health; Leeds UK
3. University of Oxford; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); Windmill Road Oxford UK OX3 7LD
4. University of Cagliari; Cagliari Sardinia Italy
5. Plastic Surgery and Microsurgery Section; Department of Surgical Sciences; University Hospital Duilio Casula Cagliari Sardinia Italy