1. Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Frankfurt am Main, Germany.
2. INSERM, U848, Villejuif, France.
3. Metabolomics Platform, Institut Gustave Roussy, Villejuif, France.
4. Centre de Recherche des Cordeliers, Paris, France.
5. Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.
6. Université Paris Descartes, Paris 5, Paris, France.