1. School of Biological Science and Medical Engineering Beihang University Beijing China
2. Department of Radiology Beijing Youan Hospital, Capital Medical University Beijing China
3. Department of Radiology Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University Zhengzhou Henan China
4. School of Biomedical Engineering Capital Medical University Beijing China
5. Center for Infectious Diseases Beijing Youan Hospital, Capital Medical University Beijing China