Veligotskii, N. N., V. V. Komarchuk, E. V. Komarchuk, I. V. Teslenko, and A. S. Chebotaryov. “Features of Diagnostics of Gastroesophageal and Duodenogastric Reflux in Patients With Complicated Forms of Peptic Ulcer”. Medicni Perspektivi, vol. 23, no. 4(part1), Dec. 2018, pp. 36-46, doi:10.26641/2307-0404.2018.4(part1).145659.