1. Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan;
2. Department of Orthopaedic Surgery, School of Medicine, Kitasato University, Sagamihara, Japan;
3. Infection Control Team, Kitasato University Hospital, Sagamihara, Japan
4. Department of Clinical Laboratory, Kitasato University Hospital, Sagamihara, Japan;
5. Kitasato-Otsuka Biomedical Assay Laboratories Co., Ltd, Sagamihara, Japan;
6. Department of Microbiology, Kitasato University School of Allied Health Science, Sagamihara, Japan;