1. Department of Biology; J. J. Strossmayer in Osijek, Ulica cara Hadrijana 8/A; 31000 Osijek Croatia
2. Department of Medical Chemistry, Biochemistry and Clinical Chemistry; J. J. Strossmayer in Osijek, Faculty of Medicine, Ulica cara Hadrijana 10; 31000 Osijek Croatia
3. Department of Medical Biology and Genetics; J. J. Strossmayer in Osijek, Faculty of Medicine, Ulica cara Hadrijana 10; 31000 Osijek Croatia