1. The Division of Respiratory Diseases, Department of Medicine, Kawasaki Medical School
2. The First Department of Internal Medicine, Faculty of Medicine, University of the Ryukyus
3. The Second Department of Internal Medicine, Nagasaki University School of Medicine
4. The First Department of Internal Medicine, Kurume University School of Medicine
5. Department of Microbiology, Toho University School of Medicine
6. Department of Respiratory Medicine, Division of Cancer Control, Institute of Development, Aging and Cancer, Tohoku University
7. Department of Bacteriology, Faculty of Medicine, Kagoshima University