1. Faculty of Medicine, Institute of Medical Physiology “Richard Burian”, University of Belgrade, Serbia
2. Faculty of Medicine, Department of Medical Chemistry, University of Belgrade, Serbia
3. Institute of Nuclear Sciences Vinca, University of Belgrade, Serbia
4. Faculty of Medicine, Institute of Endocrinology, Diabetes and Metabolic Diseases, University of Belgrade, Serbia
5. Department of Medical Sciences, Serbian Academy of Sciences and Arts, Belgrade, Serbia