Risk Factors of Rapid Cognitive Decline in Alzheimer's Disease and Mild Cognitive Impairment: A Systematic Review and Meta-Analysis. Song Y-N, Wang P, Xu W, Li J-Q, Cao X-P, Yu J-T, Tan L J Alzheimers Dis. 2018; 66(2):497-515. PMID: 30320579. Abstract Comment Bookmark Recommend Follow Comment | Bookmark | Recommend | Follow