1. Research Division, Experimental Department, Maritime Self-Defense Force Undersea Medical Center, Taura Minatocho, Yokosuka, Kanagawa 237-0071, Japan
2. Medical Material Division, Japan Self-Defense Force Yokosuka Hospital, Yokosuka, Japan
3. Department of Integrative Physiology and Bio-Nano Medicine, National Defense Medical College, Tokorozawa, Japan
4. National Defense Medical College Research Institute, Tokorozawa, Japan