1. Department of Upper Gastro‐Intestinal SurgeryUniversity Hospitals of Leicester NHS Trust Leicester UK
2. Social Science APPlied to Healthcare Improvement REsearch (SAPPHIRE), Department of Health SciencesUniversity of Leicester Leicester UK
3. Methods Analytics Ltd, Sheffield Digital Campus, Electric Works Sheffield UK
4. Department of Cancer StudiesUniversity of Leicester Leicester UK
5. Department of Hepatico‐Pancreatico‐Biliary SurgeryNottingham University Hospitals NHS Trust Nottingham UK