1. Department of Clinical Microbiology 9301, Juliane Mariesvej 22, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark
2. Department of International Health, Immunology, and Microbiology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
3. Department of Orthopedic Surgery, Hvidovre University Hospital, DK-2650 Copenhagen, Denmark