1 Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia.
2 Laboratory for Molecular Genetics and Radiobiology, Vinca Institute of Nuclear Sciences, University of Belgrade, Mike Petrovica Alasa 12-14, P.O. Box 522, 11001, Belgrade, Serbia.
3 Faculty of Biology, University of Belgrade, Studentski Trg 16, 11000, Belgrade, Serbia.
4 Faculty of Stomatology in Pancevo, University Business Academy, Novi Sad, Serbia.
5 Faculté de Médecine Pitié-Salpétrière, INSERM UMR 956 and Univ P & M Curie, 91 Bd l'Hôpital, 75634, Paris Cedex 13, France.
6 Laboratory for Molecular Genetics and Radiobiology, Vinca Institute of Nuclear Sciences, University of Belgrade, Mike Petrovica Alasa 12-14, P.O. Box 522, 11001, Belgrade, Serbia. isenovic@yahoo.com.