1. School of Nursing Southwest Medical University Luzhou 646000 China
2. Department of Oncology The Affiliated Hospital of Southwest Medical University Luzhou 646000 China
3. Department of Pediatrics West China Second Hospital, Sichuan University/West China School of Nursing Sichuan University Chengdu 61000 China
4. Key Laboratory of Birth Defects and Related Diseases of Women and Children Ministry of Education Chengdu 61000 China
5. School of Medical Information and Engineering Southwest Medical University Luzhou 646000 China
6. Department of Radiology The Affiliated Hospital of Southwest Medical University Luzhou 646000 China