1 Institute of Clinical Chemistry, University Hospital Schleswig-Holstein, Kiel, Germany.
2 Laboratory of Translational Oncology, Medical University of Gdańsk (formerly), Department of Medical Biotechnology, Intercollegiate Faculty of Biotechnology, Laboratory of Cell Biology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland.
3 Klinik für Mund, -Kiefer und Gesichtschirurgie, University Hospital Münster, Münster, Germany.
4 Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel and University Hospital Schleswig Holstein, Kiel, Germany.
5 Klinik für Mund, -Kiefer- und Gesichtschirurgie, Marienhospital Stuttgart, Stuttgart, Germany.