1. Department of Oral and Maxillofacial Surgery, Christian-Albrechts-University Kiel, Arnold-Heller-Str 16, 24105 Kiel, Germany
2. Department of Conservative Dentistry and Periodontology, Christian-Albrechts-University Kiel, Kiel, Germany
3. Department of Cardiovascular Surgery, Christian-Albrechts-University Kiel, Kiel, Germany
4. Institute of Infection Medicine, Christian-Albrechts-University Kiel, Kiel, Germany