Mccrone, Paul ORCID: https://orcid.org/0000-0001-7001-4502, Everitt, Hazel, Landau, Sabine, Little, Paul, Bishop, Felicity L., O’Reilly, Gilly, Sibelli, Alice, Holland, Rachel, Hughes, Stephanie, Windgassen, Sula, Goldsmith, Kim, Coleman, Nicholas, Logan, Robert, Chalder, Trudie and Moss-Morris, Rona (2021) Cost effectiveness of therapist delivered cognitive behavioural therapy and web-based self-management in irritable bowel syndrome: the ACTIB randomised trial. BMC Gastroenterology, 21 (1):276. ISSN 1471-230X (Online) (doi:10.1186/s12876-021-01848-9)