A Al–Sultan F. Aqueous extract of propolis in the treat-ment of recurrent aphthus stomatitis (Double blind study). Al-Rafidain Dent J [Internet]. 2003 Sep. 1 [cited 2026 Jan. 12];3(2):96-102. Available from: https://rden.uomosul.edu.iq/index.php/rden/article/view/34650