1. Department of Acute Respiratory Diseases, University Hospital for Infectious Diseases „Dr. Fran Mihaljević“, Zagreb, Croatia
2. Department of Acute Respiratory Diseases, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, Zagreb, Croatia
3. Department of Microbiology, University Hospital for Infectious Diseases „Dr. Fran Mihaljević“, Zagreb, Croatia
4. Department of Microbiology, University Hospital for Infectious Diseases “Dr. Fran Mihaljević”, Zagreb, Croatia