1. Department of Applied Biology and Chemical Technology, State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom 999077, Hong Kong SAR
2. Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
3. Departments of Medicine, Radiology, Pharmacology and Chemical Biology, Chemistry, and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
4. Departments of Chemistry and Radiology, University of Missouri, Columbia, Missouri 65211, United States