1Department of Gastroenterology, and, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan II Road, Yuexiu District, Guangzhou, 510080 China.
2Ultrasound, Sun Yat-sen University, No. 58 Zhongshan II Road, Yuexiu District, Guangzhou, 510080 China
3Radiology, Sun Yat-sen University, No. 58 Zhongshan II Road, Yuexiu District, Guangzhou, 510080 China
aCorresponding author: Bihui Zhong, MD, PhD, Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, No. 58 Zhongshan II Road, Yuexiu District,, Guangzhou, 510080 China , Phone: (020) 87755766 , Email: [email protected]