1. Department of Nuclear Medicine, The Tenth Affiliated Hospital of Southern Medical University (Dongguan People’s Hospital), Dongguan 523059, P. R. China
2. PET Center and Department of Nuclear Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, P. R. China
3. Department of Nuclear Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, P. R. China
4. School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, P. R. China
5. Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
6. Thunder Bay Regional Health Research Institute, 980 Oliver Road, Thunder Bay, Ontario P7B 6 V4, Canada