1. Division of Respiratory Medicine, Department of Internal Medicine St. Marianna University School of Medicine Kawasaki Japan
2. Department of Respiratory Medicine Gunma University Graduate School of Medicine Maebashi Japan
3. Division of Medical Oncology and Respiratory Medicine, Department of Internal Medicine Shimane University Hospital Izumo Japan
4. Department of Pathology St. Marianna University School of Medicine Kawasaki Japan
5. Department of Cardiovascular Medicine Gunma University Graduate School of Medicine Maebashi Japan