Arslan, Erol, Musa Barış Aykan, and Kenan Sağlam. 2016. “Comment on ‘The Relationship of Recurrent Aphthous Stomatitis and Helicobacter Pylori, Cytokine Gene Polymorphism and Cobalamin’”. Turkish Journal of Gastroenterology 27 (1):87-87. https://doi.org/10.5152/tjg.2015.150438.