1. Department of Rehabilitation Medicine, Qilu Hospital of Shandong University, Ji’nan, Shandong, People’s Republic of China
2. Department of Rehabilitation Medicine, Yuhuangding Hospital, Yantai, Shandong, People’s Republic of China
3. Department of Clinical Laboratory, Yantai Hospital for Infectious Diseases, Yantai, Shandong, People’s Republic of China
4. Department of Neurology, Yuhuangding Hospital, Yantai, Shandong, People’s Republic of China