Relationship between Plasma β-2 Microglobulin Level and Mild Cognitive Impairment in the Elderly 
LI Jiesi,PAN Zimo,CHEN Lingxia,WANG Jingtong
Chinese General Practice . 2021, (30): 3878 -3881 .  DOI: 10.12114/j.issn.1007-9572.2021.02.034