[1] INSERM, Grenoble Hosp, U578, Dept Pathol, Grenoble, France
[2] Inst Gustave Roussy, Biostat Unit, Villejuif, France
[3] Inst Pathol, Lab Mol Cytogenet, A-8010 Graz, Austria
[4] Inst Gustave Roussy, Dept Med, Villejuif, France
[5] Lab Mol Res & Drug Resistance, Dept Internal Med 1, Vienna, Austria