1. Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
2. Institute of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
3. Department of Neurology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
4. Department of Nursing, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
5. Maternal and Children's Health Research Institute, Guangdong Medical University, Shunde Maternal and Children's Hospital, Shunde, China.