1. Sun Yat-sen University,School of Computer Science and Engineering,Guangzhou,China
2. The First People’s Hospital of Kashi (Kashgar),Department of Radiology,Prefecture,China
3. Guangdong University of Technology,Guangzhou,China
4. Sun Yat-sen University,The Sixth Affiliated Hospital,Department of General Surgery (Department of Colorectal Surgery),Guangzhou,China