1 Pediatric Orthopedic Surgery Unit, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France; Team Cell Death and Pediatric Cancer, Cancer Initiation and Tumor Cell Identity Department, INSERM 1052, CNRS 5286, Cancer Research Center of Lyon, Lyon, France.
2 Medical Oncology, Hospices Civils de Lyon, CITOHL, Lyon, France; Medical Oncology, Centre Léon Bérard, Lyon, France. Electronic address: max.piffoux@chu-lyon.fr.