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