Efficacy of gargling with Licorice extract, Ketamine, and Magnesium Sulfate before Laryngoscopy: Tracheal Intubation in Prevention of Sore Throat, Hoarseness, and Cough; a Randomized Clinical Trial - Modir, Hesameddin; Mahmoodiyeh, Behnam; Kamali, Alireza; Barsari, Farzad Z; Ranjbar, Sulmaz (Indian journal of respiratory care, 2023)