1. Department of Surgery; Guy's and St Thomas' Oesophago-Gastric Centre; London UK
2. Division of Cancer Studies; Division of Cancer Studies King's College London; London UK
3. Translational Oncology and Urology Research (TOUR); Division of Cancer Studies King's College London; London UK
4. Department of Radiology; Guy's and St Thomas' Hospital; London UK
5. Department of Oncology; Guy's and St Thomas' Hospital; London UK
6. Gastrointestinal Research Unit, Department of Molecular Medicine and Surgery; Karolinska Institute, Stockholm, Sweden, on behalf of the Guy's and St Thomas' Oesophago-Gastric Research Group