Arunkumar, Sruthi Comparison of dexmedetomidine and clonidine as an adjuvant to ropivacaine for epidural anesthesia in lower abdominal and lower limb surgeries. [electronic resource] - Saudi journal of anaesthesia - 404-8 p. digital Publication Type: Journal Article ISSN: 1658-354X Standard No.: 10.4103/1658-354X.159464 doi