[1] Univ Padua, Padua, Italy
[2] Univ Hosp Erlangen, Erlangen, Germany
[3] Univ Hosp Ramon & Cajal, Madrid, Spain
[4] Hosp Clin San Carlos, Madrid, Spain
[5] Natl Ctr Tumor Dis, Heidelberg, Germany
[6] European Inst Oncol, Milan, Italy
[7] Med Univ Graz, Graz, Austria
[8] Eli Lilly & Co, Bridgewater, MA USA
[9] Eli Lilly & Co, Indianapolis, IN 46285 USA
[10] Eli Lilly & Co, Madrid, Spain
[11] Univ Calif Los Angeles, Los Angeles, CA 90024 USA