Remaining Challenges in the Treatment of Relapsed Wilms Tumor: Children's Oncology Group and International Society of Paediatric Oncology Perspectives

Kathryn S Sutton^*, Amy L Walz, Alissa Groenendijk, Andrew J Murphy, Luke Pater, Geert O Janssens, Jack Brzezinski, Elizabeth A Mullen, Filippo Spreafico, Jan Godzinski, Justine van der Beek, Marc Hwa Wijnen, Marry M van den Heuvel-Eibrink, Max Pachl, Norbert Graf, Peter F Ehrlich, Rhoikos Furtwangler, Jesper Brok, James Geller