“Single versus repeated tramadol injection in laparotomized albino rats: comparison of effects on hematology, serum biochemical parameters, and body weight gain”, J. Adv. Vet. Anim. Res, vol. 2, no. 3, pp. 316–320, Sep. 2015, Accessed: Jul. 04, 2026. [Online]. Available: https://banglajol.info/index.php/JAVAR/article/view/24865