Comparison of different doses of clonidine as an adjuvant to intrathecal bupivacaine for spinal anesthesia and postoperative analgesia in patients undergoing caesarian section - Bhushan, Shah Bhavini; Suresh, Joshi Smita; Vinayak, Shidhaye Ramchandra; Lakhe, J. N. (Anaesthesia, Pain & Intensive Care, 2019)