Şahin Çoban. “Does Long-Term Metformin Usage Reduce Gastric Cancer Risk?”. Turkish Journal of Gastroenterology 25, no. 1 (July 25, 2019): 125–125. Accessed July 6, 2025. https://turkjgastroenterol.avesjournals.com/index.php/tjg/article/view/2920.