Boyko, V., I. Kryvoruchko, A. Tischenko, A. Maloshtan, V. Feskov, R. Smachylo, R. Shevchenko, and A. Ivannicov. “MODERN APPROACHES TO SURGICAL TREATMENT OF NON BENIGN OBSTRUCTIVE CHOLESTASIS”. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", no. 7, 1, pp. 17-22, https://periodicals.karazin.ua/medicine/article/view/7234.