Yadav SK, Bhattacharya R. Acute Immunomodulatory Effects of Fentanyl and its Three New Analogues in Swiss Albino Mice. Def. Life. Sc. Jl. [Internet]. 2017 Dec. 15 [cited 2025 Aug. 3];3(1):24-30. Available from: https://publications.drdo.gov.in/ojs/index.php/dlsj/article/view/11376