1. Department of Pharmacology Ehime University Graduate School of Medicine Ehime Japan
2. Depertment of Otolaryngology Ehime University Graduate School of Medicine Ehime Japan
3. JA Ehime Kouseiren Checkup Center Ehime Japan
4. VA Palo Alto Health Care System Palo Alto California U.S.A.
5. Division of Cardiovascular Medicine Stanford University School of Medicine Stanford California U.S.A.