For citations:
Tsukanov V.V., Vasyutin A.V., Tonkikh Yu.L. Current management of proton pump inhibitor-refractory gastroesophageal reflux disease. Fundamental and Clinical Medicine. 2020;5(2):93-100. (In Russ.) https://doi.org/10.23946/2500-0764-2020-5-1-93-100