Affiliation: | 1. Department of Plastic and Reconstructive Surgery, University of Ulsan College of Medicine, Asan Medical Center, 388-1 PungNap-2Dong, SongPa-Gu, Seoul 05505, Korea;2. Department of Otolaryngology, University of Ulsan College of Medicine, Asan Medical Center, 388-1 PungNap-2Dong, SongPa-Gu, Seoul 05505, Korea |