Celasin, H. et al. 2022. Perception of COVID-19 Pandemic Among IBD Clinicians and IBD Surgeons in Black Sea Region: A Cross-Sectional Questionnaire Study. Turkish Journal of Gastroenterology. 33, 12 (Jan. 2022), 1004–1011. DOI:https://doi.org/10.5152/tjg.2022.22009.