1. Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, 35 Siaodong Rd., Tainan 704, Taiwan
2. Division of Chest Medicine, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng Li Rd., Tainan 704, Taiwan
3. Chest Hospital, Ministry of Health and Welfare, 864 Zhongshan Rd., Rende Dist., Tainan 717, Taiwan
4. Division of Thoracic Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng Li Rd., Tainan 704, Taiwan
5. Department of Public Health, College of Medicine, National Cheng Kung University, 138 Sheng Li Rd., Tainan 704, Taiwan
6. Biostatistics Consulting Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng Li Rd., Tainan 704, Taiwan
7. Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1 Dasyue Road, East District, Tainan 701, Taiwan
8. Ditmanson Medical Foundation Chia-Yi Christian Hospital, 539 Chung Hsiao Rd., Chiayi 600, Taiwan