1. Department of Restorative Dental Medicine and Endodontics, Study of Dental Medicine, School of Medicine, University of Split, Split, Croatia;
2. Study of Dental Medicine, School of Medicine, University of Split, Split, Croatia;
3. Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia;
4. Division for Mutagenesis, Institute for Medical Research and Occupational Health, Zagreb, Croatia