1. Institute of Molecular Medicine, College of Life and Health Sciences, Northeastern University, Shenyang 110000, China
2. Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University, Stanford, CA 94305, USA
3. Asian Liver Center, Department of Surgery, Stanford University, School of Medicine, Stanford, CA 94305, USA
4. Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
5. Bohai rim Advanced Research Institute for Drug Discovery, Yantai, 264000, China