1. Medical School of Chinese PLA Beijing China
2. Department of Radiology the Fifth Medical Center, Chinese PLA General Hospital Beijing China
3. Department of Radiology The First Affiliated Hospital of Zhengzhou University No. 1, Zhengzhou Henan Province China
4. Department of Radiology Pingjin Hospital, Characteristic Medical Center of Chinese People's Armed Police Force Tianjin China
5. Center For Biomedical Imaging Research, Department of Biomedical Engineering School of Medicine, Tsinghua University Beijing China
6. Operation Department RIMAG Medical Imaging Corporation Beijing China
7. Department of Radiology University of Washington Seattle USA