1. Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Gyeonggi-do, Korea
2. Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
3. Biomedical Research Center, Korea University Ansan Hospital, Ansan, Gyeonggi-do, Korea