[1] Inst Canc Res, London SW3 6JB, England
[2] Michigan Ctr Translat Pathol, Dept Pathol, Ann Arbor, MI USA
[3] Univ Turin, Dept Biomed Sci & Human Oncol, I-10124 Turin, Italy
[4] Autonomous Univ Madrid, IdiPAZ, Hosp Univ La Paz, Dept Pathol, E-28049 Madrid, Spain
[5] Inst Curie, Dept Pathol, Paris, France