1. Department of Plastic Surgery; Osaka University Graduate School of Medicine; Osaka Japan
2. Department of Plastic and Reconstructive Surgery, Osaka Prefectural Hospital Organization; Osaka International Cancer Institute; Osaka Japan
3. Department of Otorhinolaryngology-Head and Neck Surgery; Osaka University Graduate School of Medicine; Osaka Japan
4. Department of Otolaryngology-Head and Neck Surgery; Nara Medical University; Nara Japan
5. Department of Head and Neck Surgery, Osaka Prefectural Hospital Organization; Osaka International Cancer Institute; Osaka Japan