1. National Drug Clinical Trial Institution and Pharmacy, Hainan Women and Children’s, Medical Center (Children’s Hospital of Fudan University at Hainan), Haikou, Hainan, China
2. Pediatric Medical Centre, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
3. School of Management, Hainan Medical University, Haikou, Hainan, China