Nilgün MOĞULTEKİN (2020) “UPPER AND LOWER GASTROINTESTINAL SYSTEM BLEEDINS”, Turkish Journal of Gastroenterology, 3(2), pp. 435–440. Available at: https://tjg.avesjournals.com/index.php/tjg/article/view/43 (Accessed: 14 July 2025).