1. Department of Plastic and Reconstructive Surgery; Graduate School of Medicine, Dentistry and Pharmaceutical Science, University of Okayama; 700-8558 Okayama Japan
2. Department of Head and Neck Surgery; Graduate School of Medicine, Dentistry and Pharmaceutical Science, University of Okayama; 700-8558 Okayama Japan
3. Department of Oral and Maxillofacial Reconstructive Surgery; Graduate School of Medicine, Dentistry and Pharmaceutical Science, University of Okayama; 700-8558 Okayama Japan