[1] Yale Univ, Ctr Canc, New Haven, CT USA
[2] Massachusetts Gen Hosp, Ctr Canc, Boston, MA 02114 USA
[3] Dnipropetrovsk Municipal Clin Hosp 4, Dept Oncol Radiodiagnosis & Radioth, Dnepropetrovsk, Ukraine
[4] Leningrad Reg Clin Hosp, State Inst, St Petersburg, Russia
[5] Oddzial Chemioterapii, Szczecin, Poland
[6] Johannes Gutenberg Univ Mainz, Mainz, Germany
[7] Bristol Myers Squibb Co, Global Clin Res, Wallingford, CT 06492 USA
[8] Hosp Grosshansdorf, Grosshansdorf, Germany
[9] Univ Mediterranee Assistance Publ Hapitaux Marsei, Marseille, France
[10] Christian Med Coll & Hosp, Vellore, Tamil Nadu, India