[1] Univ Munich, Munich, Germany
[2] Ctr Hosp Univ Angers, Angers, France
[3] Inst Cancerol Strasbourg Europe, Strasbourg, France
[4] Franciscus Gasthuis & Vlietland, Dept Med Oncol, Rotterdam, Netherlands
[5] Vall dHebron Univ Hosp, Barcelona, Spain
[6] Univ Autonoma Barcelona, Inst Oncol, Barcelona, Spain
[7] Inst Jean Godinot, Reims, France
[8] Hosp Univ Ramon y Cajal, Madrid, Spain
[9] Ipsen Pharma, Boulogne, France
[10] Ipsen, Paris, France
[11] Fdn IRCCS Ist Nazl Tumori, Dept Med Oncol, Milan, Italy