[1] Ctr Leon Berard, Dept Oncol Med, F-69373 Lyon, France
[2] Univ Hosp 12 Octubre, Madrid, Spain
[3] Hadassah Hebrew Univ, Sharett Inst Oncol, Med Ctr, Jerusalem, Israel
[4] Univ Hosp Udine, Udine, Italy
[5] Heidelberg Univ, Natl Ctr Tumor Dis, Heidelberg, Germany
[6] Inst Cancerol Ouest, Nantes, France
[7] Ctr Georges Francois Leclerc, Dijon, France
[8] Chaim Sheba Med Ctr, IL-52621 Tel Hashomer, Israel
[9] Christie Hosp NHS Fdn Trust, Manchester, Lancs, England
[10] F Hoffmann La Roche, Basel, Switzerland
[11] Mt Vernon Canc Ctr, Northwood, Middx, England