Singh, A. P., S. Chawla, S. J. S. Bajwa, and M. Khanna. “Efficacy and Safety of Dexmedetomidine As an Intrathecal Agent: A Dose Finding Clinical Study”. Anaesthesia, Pain & Intensive Care, Jan. 2019, pp. 13-18, https://mail.apicareonline.com/index.php/APIC/article/view/152.