1. Inner Mongolia Medical University, Hohhot 010050, China
2. Department of Nuclear Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010050, China
3. Inner Mongolia Key Laboratory of Molecular Imaging, Hohhot 010050, China
4. Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
5. Hubei Province Key Laboratory of Molecular Imaging, Wuhan 430022, China