1 National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
2 Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
3 Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.
4 UCL Great Ormond St Institute of Child Health, London, UK.
5 Great Ormond Street Hospital, London, UK.
6 Clinical Policy and Center for Evidence Reviews, American College of Physicians, Philadelphia, USA.
7 Advanced Pediatrics Centre, PGIMER Chandigarh, Chandigarh, India.