[1] Prof Dr Stanislaw Popowski Reg Specialist Childre, Dept Pediat Surg, Olsztyn, Poland
[2] Prof Dr Stanislaw Popowski Reg Specialist Childre, Dept Radiol, Olsztyn, Poland
[3] Pantamed Gen Practitioners Grp, Olsztyn, Poland
[4] Univ Warmia & Mazury, Fac Med, Olsztyn, Poland
[5] Childrens Mem Hlth Inst, Dept Diagnost Imaging, Warsaw, Poland
[6] Univ Warmia & Mazury, Dept Nephrol Hypertens & Internal Med, Ul Zolnierska 18, PL-10561 Olsztyn, Poland