Comparative evaluation of intravenous versus intranasal dexmedetomidine on emergence delirium and hemodynamics in pediatric patients undergoing adenotonsillectomy: a randomized controlled trial - Dai, Chenxu; Zhao, Xuemei; Li, Aoxue; Zhang, Xuedong; Wang, Penglei; Zhang, Ye; Wu, Yun (Frontiers in Pharmacology, 2025)