Affiliation: | 1. School of Medicine and Medical Sciences, University College Dublin, , Dublin, Ireland;2. Centre for Colorectal Disease, St Vincent's University Hospital, , Dublin, Ireland;3. Department of Histopathology, St Vincent's University Hospital, , Dublin, Ireland;4. Department of Physiology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, , Dublin, Ireland;5. Graduate Entry Medical School, University Hospital Limerick, University of Limerick, , Limerick, Ireland |