For citations:
Ivashkin V.T., Trukhmanov A.S., Godzhello E.A., Mayev I.V., Evsyutina Yu.V., Lapina T.L., Storonova O.A. Diagnostics and treatment of cardiac achalasia and cardiospasm: guidelines of the Russian gastroenterological association. Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2016;26(4):36-54. (In Russ.) https://doi.org/10.22416/1382-4376-2016-4-36-54