Effect of Reversal Agents on Postoperative Cognitive Disorders Following General Anesthesia in the Elderly Population: A Systematic Review and Meta-Analysis. - Chan, Jing Yee; Singh, Bhelvinder Singh Surinder; Nachiappan, Reshma; Mohd Faizal, Nur Fatihah Jazlina; Song, Zhi Xin; Mohd, Faris Hamizan; Abdullah, Farah Hanim; Izaham, Azarinah (Diagnostics (2075-4418), 2026)