Affiliation: | 1.Biomedical Science, College of Medicine, Korea University, Seoul 152-703, Korea;2.Department of Orthopedic Surgery and Rare Diseases Institute, College of Medicine, Korea University, Seoul 152-703, Korea;3.College of Medicine, Institute for Medical Devices Clinical Trial Center, Guro Hospital, Korea University, Seoul 152-703, Korea;4.Department of Otorhinolaryngology–Head and Neck Surgery, College of Medicine, Korea University, College of Medicine, Seoul 152-703, Korea |