1. Departments of Bacteriology
2. Department of Central Clinical Laboratory, Kyoto University Hospital, Konoe-cho, Yoshida, Sakyo-ku, Kyoto 606-8501
3. Department of Food Science and Technology, National Fisheries University, Shimonoseki, Yamaguchi 759-6595, Japan
4. Clinical Laboratory Medicine, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya 466-8550