1. Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, 11000 Belgrade, Serbia
2. Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
3. Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
4. Center for Radiology and MRI, University Clinical Center of Serbia, 11000 Belgrade, Serbia
5. Clinic of Allergy and Immunology, University Clinical Center of Serbia, 11000 Belgrade, Serbia
6. Clinic for Pulmonology, University Clinical Center of Serbia, 11000 Belgrade, Serbia