DungBui Duy, TungNguyen Lam, and TuTran Viet. 2022. “Treatment Efficiency of Achalasia With Esophageal Balloon Dilation at Bach Mai Hospital and 108 Military Central Hospital ”. Tạp Chí Y Dược lâm sàng 108 17 (2). https://doi.org/10.52389/ydls.v17i2.1147.