For citations:
Osadchuk M.A., Osadchuk A.M., Balashov D.V., Kvetnoy I.M. The refractory form of gastroesophageal reflux disease: clinical and endoscopical, functional and morphofunctional criteria. Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2011;21(2):30-36. (In Russ.)