Waqar Hussain; Kelash Kumar; Aqsa Soomro; Arslan Baig; Pardeep Kumar. Dexmedetomidine As an Additive to Spinal Anaesthesia in Orthopaedic Patients Undergoing Lower Limb Surgeries: A Randomized Clinical Trial Comparing Two Different Doses of Dexmedetomidine. Pak J Med Dent Sci 2024, 1, 3-8.