Topical Airway Lidocaine Spray Reduces the 95% Effective Dose of Sufentanil for Blunting Hemodynamic Response to Tracheal Intubation in Elderly Patients: A Biased-Coin Up-and-Down Sequential Allocation Trial. - Chen X; Yang J; Pan K; Wu H; Wang S; Zhang W; Yang C (Drug design, development and therapy, 2026)