1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
2. Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China.
3. Maternal and Child Health Care Hospital of Ningxia Hui Autonomous Region (Children’s Hospital of Ningxia Hui Autonomous Region), Ningxia Hui Autonomous Region, China.
4. Peking University Health Information Technology Co. Ltd, Beijing, China.
5. Center for Intelligent Public Health, Institute for Artificial Intelligence, Peking University, Beijing, China.
6. Department of Paediatrics, Peking University First Hospital, Beijing, China.