[1] Childrens Mem Hlth Inst, Dept Gastroenterol Hepatol & Immunol, Warsaw, Poland
[2] Univ Med Sch, Dept Immunol Transplantat & Internal Dis, Warsaw, Poland
[3] Univ Med Sch, Dept Obstet & Gynecol, Warsaw, Poland
[4] Childrens Mem Hlth Inst, Dept Pediat Surg & Organ Transplantat, Warsaw, Poland