1. Department of Orthopaedic Surgery, Jeju National University Hospital, Jeju, Korea
2. Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju, Korea
3. Department of Orthopaedic Surgery, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, Korea