1. Key Laboratory of Radiopharmaceuticals of the Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals (National Medical Products Administration), College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
2. Department of Nuclear Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
3. Department of Nuclear Medicine, Chongqing University Cancer Hospital, Chongqing 400030, P.R. China
4. Hubei Province Key Laboratory of Molecular Imaging, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, P.R. China