1. Department of Clinic Medical Center, Dazhou Central Hospital, Dazhou 635000, China
2. Department of Radiology, Molecular Imaging Program at Stanford (MIPS), Stanford University, 725 Welch Road, Stanford, California 94305, United States
3. Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China