[1] Univ Turin, Thorac Oncol Unit, Turin, Italy
[2] Univ Gen Hosp Valencia, Valencia, Spain
[3] Natl Inst Canc Res, Genoa, Italy
[4] Hop Larrey, Unite Cancerol Cervico Thorac, Toulouse, France
[5] Mem Sloan Kettering Canc Ctr, Dept Neurol, New York, NY 10021 USA
[6] Texas Oncol, Hematol Oncol, Austin, TX USA
[7] Pfizer Oncol, Dev, La Jolla, CA USA