1. Department of Respiratory Medicine, Faculty of Medicine Hokkaido University Sapporo Japan
2. Division of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine Hokkaido University Sapporo Japan
3. Department of Diagnostic and Interventional Radiology Hokkaido University Hospital Sapporo Japan
4. Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine Hokkaido University Sapporo Japan