Gubergrits, N. B. “Frequency, Clinical Picture, Diagnosis, and Differential Diagnosis of the Pathology of the Digestive Tract (esophagus, Stomach, and Bowel) in IgG4-Related Disease (autoimmune Pancreatitis)”. Herald of Pancreatic Club 59, no. 2 (May 15, 2023): 26-34. Accessed September 18, 2026. https://vkp.org.ua/index.php/journal/article/view/277.