[1] Johannes Gutenberg Univ Mainz, Mainz, Germany
[2] Ist Nazl Studio & Cura Tumori, Milan, Italy
[3] Inst Gustave Roussy, Unit Immunotherapie, Villejuif, France
[4] Ctr Leon Berard, Serv Cancerol Med, Lyon, France
[5] Charite Univ Med Berlin, Tumorzentrum Benjamin Franklin, Berlin, Germany
[6] Wojskowy Inst Med, Cent Szpital Klin, Klin Oncol, Warsaw, Poland
[7] Bayer Schering Pharma, Leverkusen, Germany
[8] Bayer Schering Pharma, Gothenburg, Sweden