Muzellina VN, Andarini L, Syam AF. Etiology of Upper Gastrointestinal Bleeding: A Five-Year Study at a Tertiary Hospital. InaJGHE [Internet]. 2026 Apr. 30 [cited 2026 Oct. 19];27(1):3-9. Available from: https://ina-jghe.com/index.php/jghe/article/view/1107