, Asmaa Elzeftawy; , Loai Mansour; , Abdelrahman Kobtan; , Heba Mourad; , Ferial El-Kalla. Evaluation of the blood ammonia level as a non-invasive predictor for the presence of esophageal varices and the risk of bleeding. Turkish Journal of Gastroenterology 1, [S. l.], v. 30, n. 1, p. 15–18, 2019. DOI: 10.5152/tjg.2018.17894. Disponível em: https://ojs.avesjournals.com/index.php/tjg1/article/view/510. Acesso em: 22 may. 2025.