1. Department of Neonatology, Qingdao Women and Children's Hospital, Qingdao, Shandong Province, China
2. NHC Key Laboratory of Neonatal Diseases (Fudan University), Children's Hospital of Fudan University, Shanghai, China
3. Department of Neonatology, Guangdong Women and Children's Hospital, Guangzhou, Guangdong Province, China
4. Department of Neonatology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian Province, China
5. Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
6. Department of Neonatology, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
7. Department of Pediatrics, Mount Sinai Hospital, Toronto, Canada
8. Department of Pediatrics, University of Toronto, Toronto, Canada