A randomized control study of dexmedetomidine versus fentanyl as an anesthetic adjuvant in supratentorial craniotomies. - Gupta, Amrita; Dwivedi, Yogita; Saxena, Sumi; Srivastava, Uma; Mangla, Sandeep; Mishra, Sukhdev (Anaesthesia, Pain & Intensive Care, 2017)