[1] Pediat Univ Hosp CHU Lenval, Dept Pediat Surg, Nice, France
[2] Pediat Univ Hosp, Dept Pediat Hematol Oncol, Nice, France
[3] Pediat Univ Hosp, La Timone Hosp, Dept Pediat Surg, Aix En Provence, France
[4] Pediat Univ Hosp, Armand Trousseau Hosp, Dept Pediat Oncohematol, Paris, France
[5] Pediat Univ Hosp, Robert Debre Hosp, Dept Pediat Hematol, Paris, France
[6] Inst Curie, Dept Pediat Adolescent Young Adult Oncol, Paris, France
[7] Pediat Univ Hosp, Dept Pediat Hematol Oncol, Rennes, France
[8] Gustave Roussy, Dept Pediat Oncol, Villejuif, France
[9] Pediat Univ Hosp, Dept Pediat Hematol Oncol, Montpellier, France