1. Huaxi MR Research Center (HMRRC) Department of Radiology National Clinical Research Center for Geriatrics Frontiers Science Center for Disease‐Related Molecular Network State Key Laboratory of Biotherapy West China Hospital Sichuan University Chengdu 610041 China
2. West China Medical School Sichuan University Chengdu 610041 China
3. Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu 610041 China
4. Amgen Bioprocessing Centre Keck Graduate Institute Claremont CA 91711 USA