1. Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
2. School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
3. Program in Molecular Medicine, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
4. Division of Chest Medicine, Department of Internal Medicine, China Medical University Hospital, Taipei Branch, Taipei, Taiwan
5. Institute of Biopharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan