النابلسي إبراهيم, حسان زيزفون, and رنا عيسى. 2022. “Analytical Study of Upper Gastrointestinal Endoscopy Findings in Patients With Dysphagia”. Tishreen University Journal -Medical Sciences Series 44 (4):285-306. https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/13109.