1. Department of Gynaecology and Obstetrics; The Second Hospital of Jilin University; Changchun Jilin Province China
2. Department of Gynaecology and Obstetrics; The Hospital of Binzhou Medical University Campus; Yantai Shandong Province China
3. Department of Neurosurgery; The Hospital of Binzhou Medical University Campus; Yantai Shandong Province China
4. Department of Inspection; Harbin Medical University Daqing Campus; Daqing Heilongjiang Province China
5. Department of College of Bioinformatics Science and Technology; Harbin Medical University; Harbin Heilongjiang Province China