Affiliation: | 1. Department of Chest Medicine, Taipei Veterans General Hospital, Taiwan, Republic of China;2. School of Medicine, National Yang‐Ming University, Taiwan, Republic of China;3. Hsinchu Mackay Memorial Hospital, Taiwan, Republic of China;4. Taipei Tzu Chi Hospital, Taiwan, Republic of China;5. Sijhih Cathay General Hospital, Taiwan, Republic of China;6. Taipei Cancer Center, College of Medical Science and Technology, Taipei Medical University, Taiwan, Republic of China |