1. Department of Endocrinology and Diabetes, Clinic for Internal Medicine, Zemun Clinical Hospital, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia
2. Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
3. Promise Department, School of Medicine,
University of Palermo, Palermo, Italy