[1] Childrens Welf Teaching Hosp, Baghdad Coll Med, Pediat Oncol Unit, Med City, Baghdad, Iraq
[2] Childrens Welf Teaching Hosp, Pediat Oncol Unit, Med City, Wasit Coll Med, Baghdad, Iraq
[3] UCL, Inst Child Health, Dev Biol & Canc, Great Ormond St, London, England
[4] UCL, Inst Child Health, Haematol & Oncol, Great Ormond St, London, England
[5] Cent Teaching Lab, Pathol, Med City, Baghdad, Iraq