For citations:

Dronova O.B., Kagan I.I., Tretyakov A.A., Mironchev A.O. Discussion issues of gastroesophageal reflux disease based on clinical and endoscopic studies. Experimental and Clinical Gastroenterology. 2019;(4):40-45. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-164-4-40-45