[1] Inst Canc Montpellier ICM, Med Oncol Dept, 208 Ave Apothicaires, F-34298 Montpellier 5, France
[2] Univ Montpellier, Inst Rech Cancerol Montpellier IRCM, INSERM, Montpellier, France
[3] Inst Canc Montpellier, Biometr Unit, Montpellier, France
[4] Inst Canc Montpellier, Med Res Unit, Montpellier, France