Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan
Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan

Nihon University Graduate School of Dentistry at Matsudo, Histology and Embryology, Matsudo, Chiba 271–8587, Japan

Nihon University Graduate School of Dentistry at Matsudo, Anesthesiology, Matsudo, Chiba 271–8587, Japan

Departments of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan
Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan

Department of Anesthesiology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan
Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan

Departments of Histology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan
Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba 271–8587, Japan