1. Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, People’s Republic of China
2. Department of Orthopedic Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, People’s Republic of China
3. Department of Obstetrics and Gynecology, Peking University People’s Hospital, Beijing, People’s Republic of China
4. Image Equipment and Technology Laboratory, College of Medical Imaging, Mudanjiang Medical University, Mudanjiang, Heilongjiang, People’s Republic of China
5. Department of Ultrasound, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, People’s Republic of China
6. Key Laboratory of Tumor Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang, Heilongjiang, People’s Republic of China