1. Clinical Physiology Laboratory, Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
2. Beijing Jiaoyangzhixin Education Consulting Co., Ltd., Beijing, China.
3. Department of Neurology, Children's Hospital Affiliated to the Capital Institute of Pediatrics, Beijing, China.
4. Division of Electrophysiology, Women and Children's Hospital of Qinghai Province, Xining, China.