1. Department of Neurology, The Affiliated Hiser Hospital of Qingdao University, Qingdao, Shandong, China (mainland)
2. Department of Clinical Nutrition, The Affiliated Hiser Hospital of Qingdao University, Qingdao, Shandong, China (mainland)
3. Department of Oral Mucosa, Stomatological Hospital, Yantai, Shandong, China (mainland)
4. Fundamental Teaching Center, Ocean University of China, Qingdao, Shandong, China (mainland)
5. Department of Neurology, People's Hospital of Haiyang City, Haiyang, Shandong, China (mainland)