Kanikovskyi, O. Y., Y. V. Babiychuk, Y. V. Karyi, and D. O. Kanikovskyi. “Ways to Correct Biliary Obstruction in Age-Specific Aspect”. Reports of Vinnytsia National Medical University, Vol. 20, no. 1(2), Sept. 2017, pp. 195-9, https://reports-vnmedical.com.ua/index.php/journal/article/view/339.