Effects of Cognitive Therapy Combined with Physical Exercise on the Elderly with Alzheimer's Disease and Mild Cognitive Impairment:a Meta-analysis 
CHEN Yujing,DU Shizheng,DING Huan,LI Weitong,XU Guihua
Chinese General Practice . 2018, (32): 3938 -3945 .  DOI: 10.12114/j.issn.1007-9572.2018.00.300