1. Department of Flow Cytometry and Molecular Diagnostics, University Hospital for Infectious Diseases “Dr. Fran Mihaljevic,” Zagreb, Croatia.
2. Institute of Microbiology and Immunology, University of Ljubljana, Ljubljana, Slovenia.
3. Department of HIV/AIDS, University Hospital for Infectious Diseases “Dr. Fran Mihaljevic” and University of Zagreb School of Medicine, Zagreb, Croatia.