1. Laboratory of Bacterial Drug Resistance
Gunma University Graduate School of Medicine
2. Department of Bacteriology and Bacterial Infection Control
Gunma University Graduate School of Medicine
3. Ichihara Hospital
Teikyo University School of Medicine
Ichihara, Chiba 299-0111, Japan
4. Department of Bacterial Pathogenesis and Infection Control
National Institute of Infectious Diseases
Gakuen, Musashi-Murayama
Tokyo 208-0011, Japan
5. Department of Bacteriology and Bacterial Infection Control and Laboratory of Bacterial Drug Resistance
Gunma University Graduate School of Medicine
Maebashi, Gunma 371-8511, Japan