1. Department of Ultrasound, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Guangzhou, China.
2. Department of Ultrasound, Department of Medical Ultrasonics, The Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China.
3. Department of Ultrasound, Huadu District People's Hospital, Guangzhou, China.
4. Department of Ultrasound, Foshan First Municipal People's Hospital (The Affiliated Foshan Hospital of Sun Yat-sen University), Foshan, Guangdong Province, China.
5. Department of Ultrasound, Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou, China.
6. Department of Ultrasound, The Fifth People's Hospital of Nanhai, Foshan, Guangdong Province, China.
7. Department of Anesthesiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Guangzhou, China.