Affiliation: | aDepartment of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 330-714, South Korea bDepartment of Biochemistry, College of Medicine, Inha University, Incheon 400-712, South Korea cInstitute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea |