1. Medical
Isotopes Research Center and Department of Radiation Medicine, School
of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
2. Key
Laboratory of Protein and Peptide Pharmaceuticals, CAS Center for
Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
3. Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
4. Medical
and Healthy Analytical Center, Peking University, Beijing 100191, China