1. School of Life Sciences North China University of Science and Technology Tangshan China
2. Department of Preventive Health The Third People's Hospital of Xiangcheng District in Suzhou Suzhou China
3. Department of Pediatrics North China University of Science and Technology Affiliated Hospital Tangshan China
4. Department of Neurology Tangshan Gongren Hospital Tangshan China
5. Department of Obstetrics and Gynecology Tangshan People's Hospital Tangshan China