1. School of Basic Medical Science, Southwest Medical University, Luzhou,646000, China
2. Department of Radiology, Huaxi MR Research Center (HMRRC), Department of Biotherapy, National Clinical Research Center for Geriatrics, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
3. Department of Radiology, Chongqing General Hospital, No. 118, Xingguang Avenue, Liangjiang New Area, Chongqing, 401147, China
4. Amgen Bioprocessing Centre, Keck Graduate Institute Claremont, CA 91711, USA
5. Functional and Molecular Imaging Key Laboratory of Sichuan Province and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
6. Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen, Fujian, China