1. Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan
2. Department of Respiratory Medicine and Infectious Diseases, Niigata University Medical & Dental Hospital, Niigata 951-8510, Japan
3. Department of Molecular and Cellular Pathology, Kanazawa University, Kanazawa 920-8640, Japan
4. Department of Pathology, Saitama Cancer Center, Saitama 362-0806, Japan
5. Department of Pathology and Clinical Laboratory, National Cancer Center Hospital, Tokyo 104-0045, Japan
6. Department of Thoracic Surgery, National Cancer Center Hospital, Tokyo 104-0045, Japan