1Department of Anatomy, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
2Department of Intelligent Image Information, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan
3Nittai Jusei Medical College for Judo Therapeutics, 2-2-7 Yoga, Setagaya-ku, Tokyo 158-0097, Japan
4Seijoh University Graduate School of Health Care Studies, 2-172 Fukinodai, Tokai, Aichi 476-8588, Japan