[1] Inst Gustave Roussy, Villejuif, France
[2] Univ Paris 11, CNRS, UMR 8126, Paris, France
[3] Univ Paris Descartes Sorbonne Cite, Inst Necker Enfants Malad, Inst Natl Rech Med U1151, Paris, France
[4] Hop Necker Enfants Malad, AP HP, Paris, France
[5] Inst Univ Canc Toulouse Oncopole, Toulouse, France
[6] Univ Toulouse 3, F-31062 Toulouse, France
[7] Univ Giessen, D-35390 Giessen, Germany
[8] Children Univ Hosp, Munster, Germany
[9] Hannover Med Sch, D-30623 Hannover, Germany
[10] Univ Kiel, Kiel, Germany
[11] New York Med Coll, Valhalla, NY 10595 USA
[12] NCI, Bethesda, MD 20892 USA
[13] St Jude Childrens Res Hosp, Memphis, TN 38105 USA
[14] Univ Tennessee, Hlth Sci Ctr, Coll Med, Memphis, TN USA
[15] Univ Utah Hlth Sci, Salt Lake City, UT USA
[16] Cambridge Univ Hosp Fdn Trust, Cambridge, England
[17] Univ Padua, Padua, Italy
[18] Fdn Cittadella Speranza, Ist Ric Pediat, Padua, Italy
[19] Univ Padua, Padua, Italy
[20] Natl Hosp Org, Nagoya Med Ctr, Nagoya, Aichi, Japan
[21] Catholic Univ Louvain, Clin Univ St Luc, Ctr Human Genet, B-1200 Brussels, Belgium