1. First Department of Internal Medicine Shinshu University School of Medicine Matsumoto Japan
2. Department of Respiratory Medicine Saku Central Hospital Advanced Care Center Saku Japan
3. Department of Respiratory Medicine Japanese Red Cross Society Nagano Hospital Nagano Japan
4. Department of Respiratory Medicine Nagano Municipal Hospital Nagano Japan
5. Department of Respiratory Medicine Japanese Red Cross Society Suwa Hospital Suwa Japan
6. Department of Respiratory Medicine Iida Municipal Hospital Iida Japan
7. Department of Respiratory Medicine Hokushin General Hospital Nakano Japan
8. Department of Respiratory Medicine Shinshu Ueda Medical Center Ueda Japan
9. Department of Respiratory Medicine Ina Central Hospital Ina Japan
10. Department of Respiratory Medicine Jiseikai Aizawa Hospital Matsumoto Japan
11. Department of Hematology and Medical Oncology Shinshu University School of Medicine Matsumoto Japan