Acknowledgments
We would like to thank Ilaria Zanetti and Beatrice Coppadoro for their support with data management and analysis. Data management and statistical processing has been funded by Alice’s Arc, children’s cancer charity focusing on rhabdomyosarcoma, United Kingdom (alicesarc.org).
This work was supported by the Fondazione Lucia Valentini Terrani ONLUS.
JCC’s work has been supported by the National Institute for Health Research (NIHR) Biomedical Research Center at the Royal Marsden NHS Foundation Trust and the Institute of Cancer Research, London. The views expressed are those of the authors and not necessarily those of the NIHR or the Department of Health and Social Care.