1. Ultrasound Department, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
2. Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing 400010, China
3. Department of Breast and Thyroid Surgery, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
4. Department of Scientific Research and Education Section, Chongqing Health Center for Women and Children, Chongqing 401120, China