Corresponding Author

Shi-Yan Li

Department of Ultrasound, Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine, Hangzhou, China

Correspondence

Shi-Yan Li, Department of Ultrasound, Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine, No. 3 Qingchun Road East, Hangzhou 310016, Zhejiang Province, China.

Email: lishiyan@zju.edu.cn