Card, Timothy R., Nakafero, Georgina, Grainge, Matthew J, Mallen, Christian D., Van-Tam, Jonathan S Nguyen, Williams, Hywel C, Abhishek, Abhishek, "Is Vaccination Against COVID-19 Associated With Inflammatory Bowel Disease Flare? Self-Controlled Case Series Analysis Using the UK CPRD", American Journal of Gastroenterology, 2023