Leslie, William, Adi Soekardi, and Aziza Ghanie Icksan. “Incidental Detection of Achalasia in a Patient With Dyspnea”. Jurnal Prima Medika Sains 7, no. 1 (June 30, 2025): 92–97. Accessed April 3, 2026. http://139.162.50.187/index.php/jpms/article/view/6816.