1. Medical Physics and Clinical Engineering Nottingham University Hospitals NHS Trust Nottingham UK
2. NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust The University of Nottingham Nottingham UK
3. Translational Medical Sciences, Nottingham Digestive Diseases Centre, School of Medicine University of Nottingham Nottingham UK
4. Gastroenterology, Royal Derby Hospital University Hospitals of Derby and Burton NHS foundation Trust Derby UK
5. Clinic for Gastroenterology and Hepatology University Hospital Zürich Zürich Switzerland
6. Digestive Function: Basel, Laboratory and Clinic for Motility Disorders and Functional Digestive Diseases Klinik Arlesheim Arlesheim Switzerland
7. Queen's Medical Centre Nottingham, Radiological Sciences, School of Medicine University of Nottingham Nottingham UK