1. Department of General Pediatrics, The Ninth People's Hospital of Chongqing, Chongqing, China.
2. Department of Neurology, Children’s Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.
3. National Clinical Research Center for Child Health and Disorders, Chongqing, China.
4. Chongqing Key Laboratory of Pediatrics, Chongqing, China.
5. Chongqing Fuling District Maternal and Child Health Care Hospital, Chongqing, China.