Department of Neurology the Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai City Shandong 264000 People’s Republic of China;
Department of Neurology the Affiliated Yantai Yuhuangding Hospital of Qingdao University Yantai City Shandong 264000 People’s Republic of China;
Department of Neurology Yantaishan Hospital Yantai City Shandong 264000 People’s Republic of China;
Department of Neurology Yantaishan Hospital Yantai City Shandong 264000 People’s Republic of China;
Department of Neurology Yantaishan Hospital Yantai City Shandong 264000 People’s Republic of China;
Parkinson’s; disease; Rapid; eye; movement; sleep; behavior; disorder; Cognitive; decline; β-Amyloid;