Klimenko, V.N., Kiosov, A.M., Izbitskiy, V.V. and Gulevskiy, S.N. 2015. Combined endoscopic approaches to the cardiac sphincter achalasia treatment. Zaporozhye Medical Journal. 17, 6 (Dec. 2015). DOI:https://doi.org/10.14739/2310-1210.2015.6.56283.