Affiliation: | (1) Division of Materials Engineering, Graduate School of Science and Engineering, Yamaguchi University, Tokiwadai, Ube Yamaguchi, 755-8611, Japan;(2) Department of Organ Anatomy, Graduate School of Medicine, Yamaguchi University, Minami-Kogushi, Ube Yamaguchi, 755-8505, Japan;(3) Ube National College of Technology, Tokiwadai, Ube Yamaguchi, 755-8555, Japan |