1. Department of Microbiology, College of Medicine, Seoul National University, 28 Yongon-dong, Chongno-gu, Seoul 110-799, Korea
2. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-600, Korea
3. Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-600, Korea
4. The Korean Institute of Tuberculosis, The Korean National Tuberculosis Association, Seoul 137-140, Korea
5. Department of Microbiology, College of Medicine, Konkuk University, Chungju 380-230, Korea
6. Institute of Hansen's Disease, The Catholic University Medical College, Seoul 137-7014, Korea