AISHWARYA. S, SREEDEVI DHARMAN, and SURESH.V. “Association of Recurrent Aphthous Ulcer Among Tobacco Users - A Retrospective Study”. The journal of contemporary issues in business and government 26, no. 2 (August 30, 2020): 63–70. Accessed July 17, 2024. https://cibgp.com/au/index.php/1323-6903/article/view/231.