Farooq, Asim, Bilal Zulfiqar, and Kashif Asghar. “Indoleamine 2,3- Dioxygenase: A Novel Immunotherapeutic Target for Osteosarcoma”. Journal of Cancer & Allied Specialties 9, no. 1 (September 30, 2022). Accessed April 26, 2024. https://journals.sfu.ca/jcas/index.php/jcas/article/view/501.