Nair, Salil The effect of beta-blocker premedication on the surgical field during endoscopic sinus surgery. [electronic resource] - The Laryngoscope Jun 2004 - 1042-6 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0023-852X Standard No.: 10.1097/00005537-200406000-00016 doi Subjects--Topical Terms: Adrenergic beta-Antagonists--administration & dosageAdultAnesthesia, General--methodsDouble-Blind MethodEndoscopyFemaleHemodynamicsHumansMaleMetoprolol--administration & dosageParanasal Sinus Diseases--surgeryPremedicationProspective Studies