1. Department of Plastic and Reconstructive Surgery, Kawasaki Municipal Tama Hospital, 1-30-37 Shukugawara, Tama-Ku, Kawasaki 214-8525, Japan
2. Department of Plastic and Reconstructive Surgery, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki 216-8511, Japan