1. Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
2. Department of Clinical Laboratory, National Cancer Center Hospital, Tokyo, Japan
3. Department of Hematology, National Cancer Center Hospital, Tokyo, Japan
4. Department of Infectious Diseases, National Cancer Center Hospital, Tokyo, Japan
5. Department of Bacteriology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
6. Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan