[1] Univ Hosp, Dept Pathol, Rouen, France
[2] Univ Rouen, INSERM, U1079, Inst Res & Innovat Biomed, Rouen, France
[3] Univ Hosp, Dept Genet, Rouen, France
[4] Univ Hosp, Dept Pediat Oncol, Nancy, France
[5] Univ Hosp, Dept Genet, Nancy, France
[6] Comprehens Canc Ctr Leon Berard, Dept Genet, Lyon, France
[7] Inst Gustave Roussy, Dept Pediat, Villejuif, France
[8] Univ Hosp, French Trophoblast Dis Reference Ctr, Lyon, France