1. Medical Photonics Research Center, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan
2. Laboratory for Bioanalysis and Molecular Imaging, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
3. Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
4. Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
5. Central Research Laboratory, Hamamatsu Photonics K. K., Hamamatsu 434-8601, Japan
6. Section on High Resolution Optical Imaging, NIBIB/NIH, Bethesda, MD 20892, USA
7. Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA