Letter to the editor regarding "Can urinary biomarkers detect obstruction defined by renal functional loss in antenatal hydronephrosis?" by Ünsal Özkuvancı, M. İrfan Dönmez, Orhan Ziylan, Tayfun Oktar, Canan Küçükgergin, Bilal Çetin, Selçuk Erdem, Şule Seçkin
1 Paediatric Nephrology Unit, First Department of Paediatrics, Aristotle University of Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece. Electronic address: antigonipavlaki@yahoo.gr.
2 Second Department of Pediatric Surgery, Aristotle University of Thessaloniki, "Papageorgiouˮ General Hospital, Thessaloniki, Greece.
3 Paediatric Nephrology Unit, First Department of Paediatrics, Aristotle University of Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece.