سليمان آلان, and حسان زيزفون. 2023. “Analytical Study of Endoscopic Ultrasound Findings in Patients With Chronic Upper Abdominal Pain of Unknown Etiology”. Latakia University Journal -Medical Sciences Series 45 (4):249-60. https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/15381.