[1] Childrens Mem Hlth Inst, Dept Nephrol Kidney Transplantat & Arterial Hyper, Warsaw, Poland
[2] Childrens Mem Hlth Inst, Dept Gastrol Hepatol Feeding Disorders & Pediat, Warsaw, Poland
[3] Childrens Mem Hlth Inst, Dept Biochem Radioimmunol & Expt Med, Warsaw, Poland