Abhijith Biju, Alina Rajan, Amal A, and Shaiju S Dharan. 2023. “Methotrexate Induced Oral Ulcer: A Case Report”. International Journal of Allied Medical Sciences and Clinical Research 11 (2):203-5. https://doi.org/10.61096/ijamscr.v11.iss2.2023.203-205.