1. College of Medical Pharmaceutical & Health Sciences Kanazawa University 5‐11‐80 Kodatsuno Kanazawa Ishikawa920‐0942 Japan
2. Department of Thoracic Surgery Kanazawa University 13‐1 Takara‐machi Kanazawa Ishikawa920‐8641 Japan
3. Department of Respiratory Medicine Kanazawa University Hospital 13‐1 Takara‐machi Kanazawa Ishikawa920‐8641 Japan
4. Department of Radiology Kanazawa University Hospital 13‐1 Takara‐machi Kanazawa Ishikawa920‐8641 Japan