1. Department of Neurology, The Fourth People’s Hospital of Shenyang, Shenyang, China;
2. Department of Neurology, The Second Hospital of Dalian Medical University, Dalian, China;
3. Department of Neurology, The First Hospital of China Medical University, Shenyang, China;
4. Department of Geriatrics, Shengjing Hospital of China Medical University, Shenyang, China