1. West China School of Nursing, Sichuan University/Nursing Department, West China Second University Hospital Sichuan University Chengdu China
2. Nursing Department West China Second University Hospital, Sichuan University Chengdu China
3. Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education Chengdu China
4. Department of pediatric Intensive Care Unit, Nursing Department, West China second University Sichuan University Chengdu China