1. Department of Macroscopic Anatomy; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
2. Department of Anesthesiology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan
3. Clinical Research Center, Nagasaki University Hospital; Nagasaki Japan
4. Department of Oral Anatomy and Dental Anthropology; Nagasaki University Graduate School of Biomedical Sciences; Nagasaki Japan