1. Chest Department, Taipei Veterans General Hospital, Taipei, Taiwan;
2. Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan;
3. Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan;
4. Division of Thoracic Oncology, Department of Chest Medicine, Taipei Veterans General Hospital & Department of Medicine, National Yang-Ming University, Taipei, Taiwan;
5. Taipei Veteran General Hospital, Taipei, TW;
6. Taipei Veterans General Hospital, Taipei, Taiwan;