1. Working Group of the Reference Panel of Helicobacter pylori Strains for Antimicrobial Susceptibility Tests in Japanese Society for Helicobacter Research Tokyo Japan
2. Graduate School of Health Science Okayama University Okayama Japan
3. Department of Infectious Diseases Kyorin University School of Medicine Mitaka Japan
4. Department of Microbiology Kitasato University School of Medicine Sagamihara Japan
5. Department of Microbiology Sapporo Medical University School of Medicine Sapporo Japan
6. Department of Medical Laboratory Sciences, Health Sciences International University of Health and Welfare Graduate School Narita Japan
7. Department of Bacteriology II National Institute of Infectious Diseases (NIID) Musashimurayama Japan
8. Department of Bacteriology Nagoya University Graduate School of Medicine Nagoya Japan
9. Department of General Medicine Kyorin University School of Medicine Mitaka Japan
10. Department of Gastroenterology Faculty of Medicine Oita University Oita Japan
11. Department of Gastroenterology National Hospital Organization National Hakodate Hospital Hakodate Japan
12. Research Division of Molecular Target Therapeutics and Prevention of GI Cancer Hokkaido University Hospital Sapporo Japan