Low-Dose Dexmedetomidine Reduces Median Effective Doses of Propofol Required for Successful Gastroscope Insertion: A Prospective Randomized Controlled Dose-Finding Trial. - Zhu, Qian; Hao, Pei-Pei; Cui, Ling-Li; Liu, Fu-Kun; Xue, Fu-Shan (Therapeutics & Clinical Risk Management, 2026)