1. Medical
Isotopes Research Center and Department of Radiation Medicine, School
of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
2. Medical
and Healthy Analytical Center, Peking University, Beijing 100191, China
3. Key
Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for
Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
4. Laboratory
of Molecular Imaging and Nanomedicine, National Institute of Biomedical
Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States