[1] Toulouse Univ Hosp, Toulouse, France
[2] Univ Turin, Dept Oncol, Turin, Italy
[3] Univ Hosp La Paz, Dept Med Oncol, Madrid, Spain
[4] San Camillo Forlanini Hosp, Dept Lung Dis, Rome, Italy
[5] Radiumhosp, Oslo Univ Hosp, Inst Canc Res, Dept Canc Genet, Oslo, Norway
[6] Radiumhosp, Oslo Univ Hosp, Inst Canc Res, Dept Oncol, Oslo, Norway
[7] Med Univ Gdansk, Oncol & Radiotherapy, Gdansk, Poland
[8] Carl von Ossietzky Univ Oldenburg, Pius Hosp, Oncol, Oldenburg, Germany
[9] Univ Hosp Cologne, Ctr Integrated Oncol, Cologne, Germany
[10] F Hoffmann La Roche Ltd, Basel, Switzerland
[11] Genentech Inc, San Francisco, CA 94080 USA
[12] Chonnam Natl Univ, Hwasun Hosp, Jeonnam, South Korea