1. Department of Respiratory Medicine, Graduate School of Medicine Osaka City University Osaka Japan
2. Department of Clinical Oncology, Graduate School of Medicine Osaka Metropolitan University Osaka Japan
3. Department of Diagnostic Pathology, Graduate School of Medicine Osaka Metropolitan University Osaka Japan
4. Department of Pulmonary Medicine Bell land General Hospital Sakai Japan
5. Department of Pulmonary Medicine Ishikiriseiki Hospital Higashiosaka Japan
6. Department of Respiratory Medicine, Graduate School of Medicine Osaka Metropolitan University Osaka Japan