1. School of Veterinary Medicine Azabu University Sagamihara Kanagawa Japan
2. School of Life and Environmental Science Azabu University Sagamihara Kanagawa Japan
3. School of Science and Engineering Teikyo University Utsunomiya Tochigi Japan
4. Advanced Instrumental Analysis Center Teikyo University Utsunomiya Tochigi Japan
5. Daltonics Division Bruker Japan K. K. Yokohama Kanagawa Japan