Hirday Kumar; Aditya Prakash; Pankaj Kumar. Comparative Evaluation of Perineural Dexamethasone Withropivacaine and Dexamothasone Alone in Thoracic Paravertebral Block for Postoperative Analgesia in Elective Thoracotomy: A Randomized, Double-Blind, Placebo-Controlled Trial. Int. J. Heal. Clin. Res. 2021, 4, 77-81.