1. Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, United States
2. Molecular Imaging Research Center, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
3. Heilongjiang Key Laboratory of Scientific Research in Urology, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
4. Department of Biophysics, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
5. Department of Pharmacological & Pharmaceutical Sciences, University of Houston, Houston, Texas 77204, United States