[1] San Camillo Forlanini Hosp, Dept Med Oncol, Rome, Italy
[2] Cambridge Univ Hlth Partners, Cambridge, England
[3] Poznan Univ Med Sci, Clin Hosp 1, Poznan, Poland
[4] AVEO Oncol, Cambridge, MA USA
[5] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA