Gubergrits, N. B., DyadykY. А., A. Ye. Klochkov, N. V. Byelyayeva, M. D. Ivanova, GinkotaY. А., and Y. E. Chirkov. “Clinical Observation of IgG4-Associated Disease”. Herald of Pancreatic Club 38, no. 1 (March 6, 2018): 34-41. Accessed November 30, 2021. https://vkp.org.ua/index.php/journal/article/view/102.