Widodo, Budi, Iswan Abbas Nusi, and Titong Sugihartono. “Effect of Pneumatic Balloon Dilation to The Changes of Eckardt Score in Patient With Achalasia”. Biomolecular and Health Science Journal 3, no. 1 (June 12, 2020): 1–4. Accessed November 24, 2024. https://e-journal.unair.ac.id/BHSJ/article/view/17938.