1. Department of Plastic Surgery, Kobe University Hospital International Clinical Cancer Research Center, Kobe, Japan
2. Department of Plastic Surgery, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
3. Department of Plastic Surgery, Hyogo Cancer Center, Akashi, Hyogo, Japan
4. Department of Head and Neck Surgery, Hyogo Cancer Center, Akashi, Hyogo, Japan