1. Departments of Radiology and Medical Physics, University of Wisconsin-Madison, Madison, WI, 53705, USA
2. Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha 410008, P. R. China
3. Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, P. R. China
4. Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430073, P. R. China
5. Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430073, P. R. China
6. Key Laboratory of Biological Targeted Therapy of the Ministry of Education, Wuhan 430073, P. R. China
7. Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, P. R. China