Klymenko, A. V., Steshenko, A. O., Tkachov, V. S., & Sofilkanych, M. M. (2021). Specifics of endoscopic retrograde cholangiopancreatographyin patients with altered anatomy of gastrointestinal tract (a literature review). Zaporozhye Medical Journal, 23(6), 872–881. https://doi.org/10.14739/2310-1210.2021.6.232988