1. Molecular and Cellular Imaging Laboratory, Department of RadiologyHenry Ford Hospital Detroit Michigan USA
2. Mouse Core Imaging FacilityNational Heart Lung and Blood Institute Bethesda Maryland USA
3. Experimental Neuroimaging SectionLaboratory of Diagnostic Radiology Research Bethesda Maryland USA
4. Cell Processing Section, Department of Transfusion MedicineNational Institutes of Health Bethesda Maryland USA
5. Molecular Imaging Laboratory, Clinical CenterNational Institutes of Health Bethesda Maryland USA