1. Department of Ultrasound, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
2. Department of Ultrasound, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
3. Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
4. Department of Ultrasound, West China Second University Hospital, Sichuan University, Chengdu 610041, China