Evaluation of Anti-Shivering Mechanisms of Ketamine and Tramadol in Patients Undergoing Spinal Anesthesia. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 1, p. 402–408, 2026. Disponível em: https://pakjmcr.com/index.php/1/article/view/524. Acesso em: 25 jul. 2026.