1. Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York 10021, United States
2. Department of Chemistry, Hunter College, City University of New York, New York, New York 10065, United States
3. Ph.D. Program in Chemistry, Graduate Center of the City University of New York, New York, New York 10016, United States
4. Department of Pharmacology, Weill Cornell Medical College, New York, New York 10065, United States
5. Department of Radiology, Weill Cornell Medical College, New York 10021, New York United States