ORHAN, Yahya T., Cem KARAGÖZLÜ, Sülen SARIOĞLU, Osman YILMAZ, and Sedef GİDENER. “A Study on the Protective Activity of Kefir Against Gastric Ulcer”. Turkish Journal of Gastroenterology 23, no. 4 (January 4, 2012): 333–338. Accessed January 1, 2026. https://turkjgastroenterol.org/index.php/tjg/article/view/2087.