1. Department of Cellular and Molecular Anatomy and International Mass Imaging Center
2. Mitsubishi Kagaku Institute of Life Sciences, Tokyo 194-8511, Japan†
3. Department of Pharmacology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan
4. Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan
5. Riken Center for Molecular Imaging Science, Kobe, Hyogo 650-0047, Japan
6. Department of Anatomy, University of Hong Kong, Hong Kong