1. Department of Radiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
2. Molecular Imaging Research Center of Harbin Medical University, Harbin, Heilongjiang, China
3. Department of Physiology, Emory University School of Medicine, Atlanta, Georgia, USA
4. Department of Radiation Oncology, and Biochemistry and Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
5. Center for Cell and Molecular Signaling, Emory University School of Medicine, Atlanta, Georgia, USA