DR. K. SELVARJU; N.NAVEEN KUMAR. A comparative study of intrathecal clonidine and intrathecal tramadol for prolongation of neuraxial blockade analgesia with 0.5% bupivacaine in orthopaedic surgery. Asian Pacific Journal of Health Sciences, [S. l.], v. 5, n. 3, p. 117–124, 2018. DOI: 10.21276/apjhs.2018.5.3.17. Disponível em: https://apjhs.com/index.php/apjhs/article/view/284. Acesso em: 20 apr. 2024.