1. State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
2. Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, China
3. Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
4. Non-invasive and Microinvasive Laboratory of Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
5. School of Public Health, Chongqing Medical University, Chongqing, China