For citations:
Burkina N.I., Bushueva T.V., Alkhasov A.B., Borovik T.E., Chernikov V.V., Ratnikov S.A., Komina E.I., Fisenko A.P. Malnutrition in children with achalasia. Russian Pediatric Journal. 2025;28(4):253-258. (In Russ.) https://doi.org/10.46563/1560-9561-2025-28-4-253-258. EDN: icfnzn