Asil, Mehmet, Ramazan Dertli, Murat Biyik, Huseyin Ataseven, Hakki Polat, and Ali Demir. 2021. “Duodenal Varices Diagnosed By Endoscopic Ultrasound: A Case Report ”. Annals of Medical Research 24 (3): 0338-41. http://www.annalsmedres.org/index.php/aomr/article/view/2109.