1. Postgraduate Student.
2. Assistant Professor.
3. Associate Professor, Department of Obstetric Anesthesia.
4. Professor and Chairman, Department of Anesthesiology, Saitama Medical Center, Saitama Medical University, Kawagoe, Saitama, Japan.
5. Professor, Department of Biochemistry, National Defense Medical College.
6. Associate Professor.
7. Professor, Department of Developmental Anatomy and Regenerative Biology.