Effects of Dexmedetomidine versus Fentanyl as Intrathecal Adjuvants to Ropivacaine in Orthopaedic Surgery. Iranian Journal of Kideny Diseases [Internet]. 2026 Apr. 20 [cited 2026 Jun. 5];20(2):105-14. Available from: https://ijkd.net/index.php/Iranian-Journal-of-Kideny-Diseas/article/view/11