Dr. ZeljkoVerzak is a specialist in Pediatric dentistry. He is Professor ofPediatric and Preventive Dentistry at the School of Dentistry, University of Zagreb and Head of Dental Clinic, University Hospital Centre in Zagreb, Croatia. He has graduated from the School of Dental Medicine in Zagreb 1992. He was research assistant at the Department of Pediatric Dentistry, Faculty of Dentistry in Zagreb. He was, Head of the Department of Pediatric dentistry, Faculty of Dentistry, University of Zagreb. Now he is the Head of the Department of Pediatric dentistry at Dental Clinic, University Hospital Centre in Zagreb. He was a lecturer at numerous scientific and professional conferences and has published over 50 scientific papers. He is a regular member of the Croatian Medical Association, Croatian association for Pediatric dentistry, Croatian association of Leukaemia and Lymphoma, Croatian association for Dental traumatology.