1. Nottingham Digestive Diseases Centre; School of Medicine; University of Nottingham; Nottingham UK
2. National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre; Nottingham University Hospitals NHS Trust and University of Nottingham; UK
3. Sir Peter Mansfield Imaging Centre; School of Physics and Astronomy; University of Nottingham; Nottingham UK
4. Centre for Medical Imaging; Division of Medicine; UCL; London UK