Gubergrits, N.B. 2023. 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, 2 (May 2023), 26-34. DOI:https://doi.org/10.33149/vkp.2023.02.05.