AISHWARYA. S, DHARMAN S, SURESH.V. Association of Recurrent Aphthous Ulcer Among Tobacco Users - A Retrospective Study. CIBG [Internet]. 2020Aug.30 [cited 2024Dec.21];26(2):63-70. Available from: https://cibgp.com/au/index.php/1323-6903/article/view/231