1. Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Japan
2. Department of Cardiovascular Medicine, Juntendo Tokyo Koto Geriatric Medical Center, Japan
3. Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Japan
4. Department of Internal Medicine and Rheumatology, Juntendo Tokyo Koto Geriatric Medical Center, Japan
5. Department of Respiratory Medicine, Juntendo Tokyo Koto Geriatric Medical Center, Japan
6. Department of Radiology, Juntendo Tokyo Koto Geriatric Medical Center, Japan