Sciberras, Nicole, Anthea Pisani, Vanessa Vella, Eliezer Zahra Bianco, Claire Vassallo, and Pierre Ellul. “An Updated Comparative Study on the Impact of COVID-19 Infection and Vaccination in Patients With Inflammatory Bowel Disease and Irritable Bowel Syndrome”. Journal of Gastrointestinal and Liver Diseases 31, no. 4 (December 17, 2022): 424-428. Accessed April 16, 2024.