N. Sciberras, A. Pisani, V. Vella, E. Zahra Bianco, C. Vassallo, and P. Ellul, “An Updated Comparative Study on the Impact of COVID-19 Infection and Vaccination in Patients with Inflammatory Bowel Disease and Irritable Bowel Syndrome”, JGLD, vol. 31, no. 4, pp. 424-428, Dec. 2022.