1. Royal Stoke University Hospital, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
2. Hull Royal Infirmary, Hull University Teaching Hospitals NHS Trust, Hull, UK
3. The Aga Khan University, Medical College, Karachi, Pakistan
4. Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK
5. Pinderfields Hospital, Mid Yorkshire Hospitals NHS Trust, Wakefield, UK