Pathogenetic justification of digestive tract dysfunction correction to reduce the risk of ventricular extrasystoles after coronary bypass grafting - Utegaliev, Timur; Ermakhanova, Marshan; Sarsembayev, Bauyrzhan; Kuzikeev, Marat; Shley, Irina (Gastroenterology Review/Przegląd Gastroenterologiczny, 2023)