China Medical University - Department of Clinical Epidemiology, China Medical University - Department of Clinical Epidemiology, China Medical University - Department of Clinical Epidemiology, China Medical University - Department of Clinical Epidemiology, China Medical University - Department of Radiology, China Medical University - Department of Radiology, China Medical University - Department of Obstetrics and Gynecology, China Medical University - Department of Clinical Epidemiology, China Medical University - Department of Obstetrics and Gynecology and China Medical University - Department of Clinical Epidemiology