[1] Childrens Mem Hlth Inst, Dept Pediat Surg & Organ Transplantat, Warsaw, Poland
[2] Childrens Mem Hlth Inst, Dept Gastroenterol Hepatol & Immunol, Warsaw, Poland
[3] Childrens Mem Hlth Inst, Dept Oncol, Warsaw, Poland
[4] Childrens Mem Hlth Inst, Dept Pathol, Warsaw, Poland