1. University of Belgrade, Faculty of Biology, Institute of Botany and Botanical Garden “Jevremovac”, 11 000 Belgrade, Serbia
2. Department of Agricultural and Food Sciences, University of Bologna, Piazza Goidanich 60, 47521 Cesena, Italy
3. Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77054, United States
4. University of Belgrade, National Institute, Institute of Chemistry, Technology and Metallurgy, Njegoševa 12, 11000 Belgrade, Serbia