1. Department of Respiratory Medicine and Rheumatology, Graduate School of Biomedical Sciences Tokushima University Tokushima Japan
2. Department of Community Medicine for Respirology, Hematology and Metabolism, Graduate School of Biomedical Sciences Tokushima University Tokushima Japan
3. Department of Clinical Investigation National Hospital Organization Kochi Hospital Kochi Japan
4. Department of Respiratory Medicine Tokushima Prefectural Central Hospital Tokushima Japan
5. Department of Respiratory Medicine Japanese Red Cross Matsuyama Hospital Matsuyama Japan
6. Department of Pulmonary Medicine St. Luke's International Hospital Tokyo Japan
7. Department of Internal Medicine Japanese Red Cross Kochi Hospital Kochi Japan
8. Department of Respiratory Medicine Center Hospital of the National Center for Global Health and Medicine Tokyo Japan
9. Department of Community Medicine for Respirology, Graduate School of Biomedical Sciences Tokushima University Tokushima Japan