Affiliation: | 1. Gastrointestinal Unit, Mater Misericordiae Hospital, Dublin, Ireland;2. Department of Pathology, Mater Misericordiae Hospital, Dublin, Ireland;3. Department of Surgery, St James's Hospital and Trinity College, Dublin, Ireland;4. University College Dublin School of Medicine and Medical Science, Dublin, Ireland;5. Department of Pathology, St James's Hospital and Trinity College, Dublin, Ireland |