1. Department of Mechanical Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku, Toyohashi 441-8580, Japan
2. Division of Medical Information, Osaka University Dental Hospital, 1-8 Yamadaoka, Suita 565-0871, Japan
3. Department of Biological Sciences. Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku. Tokyo, 113-0033, Japan, , ,