Affiliation: | 1. Department of Chemical Engineering, Pohang University of Science and Technology, San 31, Hyoja-Dong, Nam-Gu, Pohang 790-784, Republic of Korea;1. Department of Orthopedic Surgery, Nagano Matsushiro General Hospital, 183 Matsushiro, Nagano 381-1231 Japan;2. Research and Development Division, Omae Sansuukokugo School, Nakano, Nagano, Japan;3. Department of Orthopedic Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, Japan |