1. State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, PR China;
2. New York Medical College, Valhalla, NY, USA;
3. Department of Ultrasound, Huanggang Central Hospital, Huanggang City, Hubei, China