Reply to Second malignancies in Ewing sarcoma survivors

Neyssa M. Marina, Qi Liu, Sarah S. Donaldson, Charles A. Sklar, Gregory T. Armstrong, Kevin C. Oeffinger, Wendy M. Leisenring, Jill P. Ginsberg, Tara O. Henderson, Joseph P. Neglia, Marilyn A. Stovall, Yutaka Yasui, R. Lor Randall, David S. Geller, Leslie L. Robison, Kirsten K. Ness