1. St Helens and Knowsley University Hospitals, Prescot, UK
2. Trauma and Orthopaedics, West Hertfordshire Hospitals NHS Trust, Watford, UK
3. Trauma & Orhopaedics, Salford Royal NHS Foundation Trust, Wrightington Hospital, Wigan, UK
4. Upper Limb Unit, Wrightington Hospital, Wigan, UK
5. Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK
6. Trauma and Orthopaedics, Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK