ÜNSAL, B. (1993) “DRUG-INDUCED UPPER GASTROINTESTINAL SYSTEM BLEEDINGS: AN EVALUATION OF THE PATIENTS HOSPITALIZED FROM UPPER GIS BLEEDING BETWEEN 1987 AND 1991 YEARS”, Turkish Journal of Gastroenterology, 4(3), pp. 460–462. Available at: https://www.turkjgastroenterol.org/index.php/tjg/article/view/328 (Accessed: 1 January 2026).