1. Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea.
2. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
3. Department of Internal Medicine, Inha University College of Medicine, Incheon, Korea.
4. Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
5. Gwangju/Chunnam Chapter of the Korean National Tuberculosis Association, Gwangju, Korea.
6. Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Korea.
7. Department of Internal Medicine, Mokpo Chunnam Hospital, Mokpo, Korea.
8. Department of Internal Medicine, The Catholic University of Korea School of Medicine, Seoul, Korea.
9. Department of Internal Medicine, Yeonggwang Christian Hospital, Yeonggwang, Korea.