Kebkalo, A., V. Hordovskyy, A. Reiti, and A. Golovin. “Algorithm Application of Mini-Invasive Endoscopic Drainage Procedures under Ultrasound Control”. Reports of Vinnytsia National Medical University, Vol. 21, no. 1(1), Sept. 2017, pp. 34-38, https://reports-vnmedical.com.ua/index.php/journal/article/view/69.