Nzhad Mustafa, B. .; Fakhree Alzubaidee, A. . Comparative Evaluation of The Efficacy of Topical Hyaluronic Acid ( 0.2%) and Topical Triamcinolone Acetonide( 0.1%) in The Treatment of Recurrent Aphthous Stomatitis . djm 2020, 19, 107-117.