Targeted plasma metabolomics reveals potential biomarkers of the elderly with mild cognitive impairment in Qingdao rural area - Meng, Yuchi; Cheng, Murong; Qu, Hongyan; Song, Zhenxue; Zhang, Ling; Zeng, Yuanjun; Zhang, Dongfeng; Li, Suyun (Frontiers in Aging Neuroscience, 2024)