1. Centre for Colorectal Disease, St Vincent’s University Hospital, Dublin, Ireland
2. School of Psychology, University College Dublin, Dublin, Ireland
3. Department of Psychiatry, Psychotherapy and Mental Health Research, UCD School of Medicine, St Vincent’s University Hospital, Dublin, Ireland
4. Department of Gastroenterology, Beaumont Hospital, Dublin, Ireland
5. Department of Gastroenterology, St Luke’s Hospital, Kilkenny, Ireland