1. Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
2. Department of Medicine, Keiyu Hospital, Yokohama, Japan
3. Department of Medicine, Sano-kosei General Hospital, Sano, Japan
4. Division of Patient Safety, Keio University School of Medicine, Tokyo, Japan
5. Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
6. Pulmonary division, Internal Medicine, Saiseikai Utsunomiya Hospital, Utsunomiya, Japan
7. Palliative Care Center, Keio University Hospital, Tokyo, Japan
8. Respiratory Medicine, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
9. Clinical and Translational Research Center, Keio University Hospital, Tokyo, Japan
10. Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan
11. Department of Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
12. Department of Respiratory Medicine, Nippon Kokan Hospital, Kawasaki, Japan
13. Department of Respiratory Medicine, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
14. Division of Pulmonary Medicine, Kawasaki Municipal Hospital, Kawasaki, Japan
15. Department of Pulmonary Medicine, Eiju General Hospital, Tokyo, Japan
16. Division of Pulmonary Medicine, Department of Medicine, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
17. Department of Respiratory Medicine, Kitasato University School of Medicine, Sagamihara, Japan