Corresponding Author

Department of medical oncology, Institut Curie Hospital, Paris, France

INSERM U830, Équipe Labellisée Ligue Nationale Contre le Cancer, Diversity and Plasticity of Childhood Tumors Lab, PSL Research University, Institut Curie Research Center, Paris, France

Correspondence

Dr Sarah Watson, MD, PhD INSERM U830, Équipe Labellisée Ligue Nationale Contre le Cancer, Diversity and Plasticity of Childhood Tumors Lab, PSL Research University, Institut Curie Research Center, Paris, France Department of Medical Oncology, Institut Curie Hospital, Paris, France 26 rue d’Ulm 75005 Paris, France Telephone number: + 0033 1 72 38 94 34 Fax number: +0033 1 53 10 40 41

Email: sarah.watson@curie.fr

Dr Gaëlle Pierron, PhD Somatic Genetic Unit, Department of Genetics, Institut Curie Hospital, Paris, France 26 rue d’Ulm 75005 Paris, France Telephone number: +0033 1 56 24 58 08 Fax number: + 0033 1 53 10 26 47 email address:

Email: gaelle.pierron@curie.fr