1. Royal Wolverhampton Hospitals NHS Trust; Wolverhampton; UK
2. Torbay Hospital; Torquay; UK
3. Department of General Surgery; Manchester Royal Infirmary; Manchester; UK
4. Royal Infirmary; Glasgow; UK
5. Department of Histopathology; Royal Bolton NHS Foundation Trust; Bolton; UK
6. Imperial College Healthcare NHS Trust; Charing Cross Hospital; London; UK
7. The Royal Marsden Hospital; London; UK
8. Salisbury NHS Foundation Trust; Salisbury; UK
9. Department of Histopathology; University Hospital of South Manchester; Manchester; UK