1. Biomedical
Imaging Research Center, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
2. Department
of Experimental Therapeutics, Institute for Advancement of Clinical
and Translational Science, Kyoto University Hospital, Kyoto 606-8507, Japan
3. Technology
Research Laboratory, Shimadzu Corporation, Kyoto 619-0237, Japan
4. Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura,
Nishikyo-ku, Kyoto 615-8510, Japan