1. General Surgery; Wales Deanery, Health Education and Improvement Wales; Nantgarw UK
2. Department of General Surgery; Sandwell and West Birmingham NHS Trust; West Bromwich UK
3. Exeter Health Services Research Unit; Royal Devon & Exeter NHS Foundation Trust; Exeter UK
4. Colorectal Surgery; Royal Devon & Exeter NHS Foundation Trust; Exeter UK
5. Experimental Medicine; University of Exeter Medical School; Exeter UK
6. Exeter Test Group; College of Medicine and Health, University of Exeter Medical School, University of Exeter; Exeter UK
7. Biosciences, College of Life and Environmental Sciences; University of Exeter; Exeter UK