1. San Francisco State University; Department of Chemistry and Biochemistry; San Francisco CA USA
2. Stanford University; Department of Radiology; Stanford CA USA
3. SRI International; Neuroscience Program; Menlo Park CA USA
4. Oberlin College; Department of Chemistry; Oberlin OH USA
5. GE Healthcare; Applied Sciences Laboratory; Menlo Park CA USA
6. University of Maryland, Baltimore; Department of Diagnostic Radiology and Nuclear Medicine; Baltimore MD USA
7. Stanford University; Department of Electrical Engineering; Stanford CA USA