[1] INSERM, U1018, CESP Ctr Res Epidemiol & Populat Hlth, Environm Epidemiol Canc Team, F-94807 Villejuif, France
[2] Univ Paris Sud, UMRS 1018, F-94807 Villejuif, France
[3] French Natl Registry Childhood Hematol Malignanci, Villejuif, France
[4] IRSN DRPH SER, Inst Radiol Protect & Nucl Safety, F-92262 Fontenay Aux Roses, France
[5] IRSN DRPH SRBE, Inst Radiol Protect & Nucl Safety, F-92262 Fontenay Aux Roses, France