Abhijith Biju, Alina Rajan, Amal A, Shaiju S Dharan. Methotrexate induced oral ulcer: a case report. Int. J. of Allied Med. Sci. and Clin. Res. [Internet]. 2023 Jun. 7 [cited 2025 May 13];11(2):203-5. Available from: https://ijamscr.com/ijamscr/article/view/1328