1. Departmentof Microbiology and Cancer Research Institute, Institute of EndemicDiseases, SNUMRC, Seoul National University College of Medicine, andClinical ResearchInstitute
2. Department ofClinical Pathology, Seoul National University College ofMedicine, Seoul110-799
3. The KoreanInstitute of Tuberculosis, Korean National TuberculosisAssociation, Seoul 137-140,Korea