1. Department of Psychiatry, Hamamatsu University School of Medicine, Hamamatsu, Japan
2. Department of Biofunctional Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan
3. Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu, Japan
4. Kohseikai Ogasa Hospital, Kakegawa, Japan
5. Department of Molecular Imaging, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Japan