1. Department of Paediatrics, The Second School of Clinical Medicine Southern Medical University Guangzhou China
2. Department of Neonatology and Neonatal Intensive Care Unit, Beijing Chao‐Yang Hospital Capital Medical University Beijing China
3. Department of Neonatology and Neonatal Intensive Care Unit Huizhou Central People's Hospital Huizhou China
4. Department of Neonatal Intensive Care Unit, Dongguan Children's Hospital Guangdong Medical University Dongguan China
5. Department of Paediatrics Liaocheng People's Hospital Liaocheng China
6. Department of Neonatology and Neonatal Intensive Care Unit The First Affiliated Hospital of Zhengzhou University Zhengzhou China
7. Children's hospital of Shanxi (Women Health Center of Shanxi) Taiyuan China
8. Department of Neonatology Maternity and Child Health Care of Zaozhuang Zaozhuang China
9. Department of Neonatology, Women and Children's Hospital, School of Medicine, Xiamen university Xiamen key laboratory of perinatal‐neonatal infection Xiamen China
10. Department of Neonatology Kunming Children's Hospital Kunming China
11. Department of Pediatrics, Yantai Yuhuangding Hospital Qingdao University Yantai China
12. Department of Neonatology and Neonatal Intensive Care Unit Beijing Chaoyang District Maternal and Child Healthcare Hospital Beijing China