1. Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
2. Department of Biochemical Sciences “A. Rossi Fanelli” Sapienza University of Rome, Rome, Italy.
3. Institute of Oral Biology, Faculty of Dentistry University of Oslo, Oslo, Norway.
4. Pedagogical University of Cracow, Cracow, Poland.