Shamal’, M.V., Varabei, A.I. and Maskalik, Z.G. 2019. BARRETT’S ESOPHAGUS: CONTEMPORARY DIAGNOSTIC AND THERAPEUTIC APPROACHES. HEPATOLOGY and GASTROENTEROLOGY. 3, 1 (Jun. 2019), 103-108. DOI:https://doi.org/10.25298/2616-5546-2019-3-1-103-108.