1. Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Dr. Subotica 1, 11000 Belgrade, Serbia
2. Department of Neurophysiology, Institute for Biological Research “Sinisa Stankovic”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11000 Belgrade, Serbia
3. Clinic of Dermatovenereology, University Clinical Center of Serbia, Pasterova 2, 11000 Belgrade, Serbia
4. Faculty of Medicine, University of Belgrade, Dr. Subotica 8, 11000 Belgrade, Serbia
5. Clinic of Allergy and Immunology, University Clinical Center of Serbia, Koste Todorovica 2, 11000 Belgrade, Serbia