1. Department of Medical Biology and Central Electron Microscopic Laboratory, Medical School, University of Pécs, 7624 Pécs, Hungary
2. Department of Ecology, Faculty of Sciences, University of Pécs, 7624 Pécs, Hungary
3. Department of Medical Biology and Genetics, Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
4. Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, 7624 Pécs, Hungary