Department of Pediatrics The First Affiliated Hospital of Zhengzhou University Zhengzhou ChinaDepartment of Pediatrics West China Second University Hospital Sichuan University 20 South Renmin Road 3rd Section Wuhou District Chengdu 610041 China;
Department of Pediatrics West China Second University Hospital Sichuan University 20 South Renmin Road 3rd Section Wuhou District Chengdu 610041 ChinaKey Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education Sichuan University Chengdu China;
Department of Pediatrics West China Second University Hospital Sichuan University 20 South Renmin Road 3rd Section Wuhou District Chengdu 610041 ChinaKey Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education Sichuan University Chengdu China;
Department of Pediatrics West China Second University Hospital Sichuan University 20 South Renmin Road 3rd Section Wuhou District Chengdu 610041 ChinaKey Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education Sichuan University Chengdu China;
Department of Pediatrics West China Second University Hospital Sichuan University 20 South Renmin Road 3rd Section Wuhou District Chengdu 610041 ChinaKey Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education Sichuan University Chengdu China;
Assisted reproductive technology; Cerebral palsy; Meta-analysis;