1. Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
2. Department of Periodontology and Oral Medicine, Medical College, Jagiellonian University, Krakow, Poland
3. Department of Periodontology, Medical University of Warsaw, Warsaw, Poland
4. Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
5. Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA