1. Department of Neurology, The Second Hospital of Baoding City, Baoding, China
2. Department of Internal Medicine, Hospital Affiliated to Hebei University, Baoding, China
3. Department of Geriatric, The Second Hospital of Baoding City, Baoding, China
4. Second Department of Neurology, The Second Hospital of Baoding City, Baoding, China
5. Fifth Department of Internal Medicine, Baoding Children’s Hospital, Baoding, China