For citations:
Barkalova EV, Andreev DN, Ovsepian MA. The importance of functional diagnostics in determining the cause of antisecretary therapy inefficiency in a patient with heartburn: clinical observation. Meditsinskiy sovet = Medical Council. 2021;(5):46-53. (In Russ.) https://doi.org/10.21518/2079-701X-2021-5-46-53