Joseph Aslan1, Thomas E Conley1, Fiona Campbell2, Philip J Smith1, Frances McNicol3, Timothy Andrews2, http://orcid.org/0000-0002-6483-1730Sreedhar Subramanian1 1 Gastroenterology, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK 2 Pathology, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK 3 Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK Correspondence to Dr Sreedhar Subramanian, Gastroenterology, Liverpool...