Gubergrits, N. B., N. V. Byelyayeva, G. M. Lukashevich, and А. В. Юрьева. “Biliary Reflux and Features of Its Pathogenesis and Treatment in Chronic Pancreatitis”. Herald of Pancreatic Club, Vol. 2, no. 51, May 2021, pp. 67-75, https://vkp.org.ua/index.php/journal/article/view/239.