1. Division of Medicinal Safety Science National Institute of Health Sciences Kawasaki Japan
2. Division of Pharmacognosy, Phytochemistry and Narcotics National Institute of Health Sciences Kawasaki Japan
3. Department of Infection and Host Defense Chiba University Graduate School of Medicine Chiba Japan
4. Department of Public Health Chiba University Graduate School of Medicine Chiba Japan
5. Department of Gastroenterology Hiroshima Red Cross Hospital and Atomic Survivors Hospital Hiroshima Japan
6. Division of Gastroenterology Department of Internal Medicine Tokai University School of Medicine Isehara Japan
7. Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine Maebashi Japan
8. Department of Gastroenterology Kitasato University Medical Center Kitamoto Japan
9. Department of Medicine Higashisaitama National Hospital Hasuda Japan
10. Department of Gastroenterology and Metabology Ehime University Graduate School of Medicine Toon Japan
11. Department of Gastroenterology Mie University Tsu Japan
12. Department of Gastroenterology Fukushima Medical University Fukushima Japan
13. Department of Internal Medicine Kakegawa Higashi Hospital Kakegawa Japan
14. Faculty of Pharmaceutical Sciences Doshisha Women's College of Liberal Arts Kyotanabe Japan
15. Graduate School of Pharmaceutical Sciences Nagoya City University Nagoya Japan
16. Faculty of Medical Technology Teikyo University Tokyo Japan