“The Role of Aspartate Aminotransferase to Platelet Ratio Index as a Non-Invasive Predictor of Variceal Etiology of Upper Gastrointestinal Bleeding”, J. Lumbini Med. Coll., vol. 8, no. 2, pp. 206–211, Sep. 2020, Accessed: Jul. 16, 2026. [Online]. Available: https://www.nepjol.info/index.php/JLMC/article/view/40817