Clonidine versus Tramadol as Adjuvant to Epidural Anaesthesia With 0.5% Bupivacaine for Lower Limb Orthopaedic Procedures - Kumkum Gupta; Pavitra Kalra; Prashant K Gupta; Salony Agarwal; Abhishake Kumar; Iqraa Khanum (Academia Anesthesiologica International, 2019)