[1] Univ Klinikum Essen, Essen, Germany
[2] Harvard Univ, Massachusetts Gen Hosp, Ctr Canc, Sch Med, Boston, MA 02114 USA
[3] Univ Sydney, Sydney, NSW 2006, Australia
[4] Mt Vernon Canc Ctr, Northwood, Middx, England
[5] Univ Med Ctr, Tubingen, Germany
[6] Univ Iowa Hosp & Clin, Iowa City, IA 52242 USA
[7] NN Blokhin Russian Canc Res Ctr, Moscow, Russia
[8] Univ Heidelberg Hosp, Hauttumorzentrum, Univ Hautklin, Heidelberg, Germany
[9] Maria Sklodowska Curie Mem Canc Ctr & Inst Oncol, Warsaw, Poland
[10] Elbeklinikum Buxtehude, Buxtehude, Germany
[11] Univ Zurich Hosp, CH-8091 Zurich, Switzerland
[12] Charite, Melanoma Ctr, D-13353 Berlin, Germany
[13] Royal Marsden Hosp NHS Fdn Trust, London, England
[14] Heidelberg Univ, German Canc Res Ctr DKFZ, Heidelberg, Germany
[15] Heidelberg Univ, Univ Med Ctr Mannheim, Heidelberg, Germany
[16] GlaxoSmithKline, Collegeville, PA USA
[17] Inst Gustave Roussy, Villejuif, France