Endoscopic excision of significant polyp and early colorectal cancer lesions

*Translational Gastroenterology Unit, Nuffield Department of Medicine, Oxford NIHR Biomedical Research Centre, John Radcliffe Hospital, University of Oxford, Oxford, UK, †Solent Centre for Digestive Diseases, Portsmouth, UK, ‡School of Medicine, Cardiff University, Cardiff, UK, §Department of Gastroenterology, St James’s Hospital, Dublin, Ireland, ¶Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK, **Northern Institute for Cancer Research, Newcastle University, Newcastle, UK, and ††St Mark’s Hospital and Academic Institute, London, UK