1. Department of Ultrasound, The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
2. Department of Ultrasound, The First Affiliated Hospital of Xiamen University, Xiamen, China
3. Department of Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xiamen University, Xiamen, China
4. Department of Pathology, The First Affiliated Hospital of Xiamen University, Xiamen, China
5. Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
6. Collaborative Innovation Center for Maternal and Infant Health Service Application Technology, Quanzhou Medical College, Quanzhou, China