1. Department of Plastic and Reconstructive Surgery, Hull University Teaching Hospitals NHS Trust, Hull, United Kingdom
2. Department of Plastic and Reconstructive Surgery, Swansea Bay University Health Board, Swansea, United Kingdom
3. Department of Plastic Surgery, University Hospitals Sussex NHS Foundation Trust, Brighton, United Kingdom
4. Library and Knowledge Services, Swansea Bay University Health Board, Swansea, United Kingdom
5. Centre for Clinical Sciences, Hull York Medical School, Hull, United Kingdom.