1. Dental Health Center Vinkovci, Vinkovci, Croatia.
2. Private Dental Practice Ismile, Split, Croatia.
3. Department of Medical Microbiology and Parasitology, School of Medicine, University of Zagreb, University Hospital Center Zagreb, Zagreb, Croatia.
4. Department of Oral Surgery, School of Dental Medicine, University of Zagreb, University Hospital Center Zagreb, Zagreb, Croatia.
5. Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.