Controlled Hypotension for Functional Endoscopic Sinus Surgery: A Comparative study of Dexmedetomidine and Esmolol. Bangladesh J of Otorhinolaryngology [Internet]. 2020 Feb. 5 [cited 2026 Jun. 29];24(1):37-49. Available from: https://www.banglajol.info/index.php/BJO/article/view/45340