1 Department of Oral and Maxillofacial Surgery (Sasaki, Okamoto), Tokyo Women's Medical University, School of Medicine; Department of Plastic and Reconstructive Surgery (Sasaki), Tokyo Metropolitan Police Hospital; Department of Surgical Pathology (Taneda), Tokyo Women's Medical University, School of Medicine, Tokyo, Japan sasaki.ryo@twmu.ac.jp.
2 Department of Oral and Maxillofacial Surgery (Sasaki, Okamoto), Tokyo Women's Medical University, School of Medicine; Department of Plastic and Reconstructive Surgery (Sasaki), Tokyo Metropolitan Police Hospital; Department of Surgical Pathology (Taneda), Tokyo Women's Medical University, School of Medicine, Tokyo, Japan.