Jasna Bacalja1, Lada Zibar2, Danica Galešić Ljubanović3. 1. Clinical Department of Pathology and Cytology, Dubrava University Hospital, Zagreb, Croatia. Electronic address: jesenbac@yahoo.com. 2. Department for Nephrology, Internal Clinic, University Hospital Osijek, Osijek, Croatia; Department for Pathophysiology, School of Medicine, University Josip Juraj Strossmayer, Osijek, Croatia. 3. Clinical Department of Pathology and Cytology, Dubrava University Hospital, Zagreb, Croatia; Institute of Pathology, School of Medicine, University of Zagreb, Zagreb, Croatia.