Shaheen, M. S. A.; Sardar, K. .; Chowdhury, A. N. .; Mondal, S. K. .; Ahmed, R. .; Alam , S. S. . Controlled Hypotension for Functional Endoscopic Sinus Surgery: A Comparative Study Between Dexmedetomidine Versus Esmolol. j Bangladesh Soc Anaesthesiologists 2018, 31, 67-74.