1. Department of Plastic and Reconstructive Surgery, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea.
2. Department of Pathology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea.
3. Department of Plastic and Reconstructive Surgery, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.