PO-0841: Kidney-sparing whole abdominal irradiation in Wilms Tumor: potential advantages of VMAT technique. (April 2018) - Chen, M.J.; Leao, C.R.; Carioca, A.L.; Simoes, R.C.P.; Belletti, F.S.; Figueiredo, M.L.S.; Cypriano, M.S.