A Prospective, Double-Blind, Randomized, Placebo-Controlled Study of Dexmedetomidine as an Adjunct to Epidural Analgesia After Thoracic SurgeryStaffan Wåhlander, Robert N. Sladen, Rajeev R Joshi et al.|Journal of Cardiothoracic and Vascular Anesthesia|2005Cited by 93