Milan B. Jovanovic
Department of Otorhinolaryngology, University Hospital, Zemun”, Belgrade, Serbia
Dragoslava Djeric
Clinic of Otorhinolaryngology Institute for Medical Research
Rastislav Poljovka
Department of Otorhinolaryngology, University of Belgrade School of Medicine, Belgrade, Serbia
Sanja Milenkovic
Department of Clinical Pathology, Clinical Hospital Centre Zemun, Zemun, Serbia