1. North China University of Technology,School of Information Technology,Beijing,China,100144
2. People’s Hospital,Department of Radiology,Changzhi,China,045000
3. Second People’s Hospital,Department of Gastroenterology,Changzhi,China,046000
4. PLA General Hospital,Department of Emergency,Beijing,China,100853
5. Sun Yatsen University,School of Computer Science and Engineering,Guangzhou,China,510000