[1] Int Agcy Res Canc, F-69008 Lyon, France
[2] NCI, NIH, Div Canc Epidemiol & Genet, Bethesda, MD 20892 USA
[3] Univ Calif San Francisco, UCSF Comprehens Canc Ctr, San Francisco, CA 94143 USA
[4] German Canc Res Ctr, Infect & Canc Program, Heidelberg, Germany
[5] Masaryk Mem Canc Inst, Dept Canc Epidemiol & Genet, Brno, Czech Republic
[6] Palacky Univ, Fac Med, Dept Prevent Med, CR-77147 Olomouc, Czech Republic
[7] Russian Canc Res Ctr, Inst Carcinogenesis, Moscow, Russia
[8] Inst Publ Hlth, Bucharest, Romania
[9] Inst Occupat Med, Dept Epidemiol, Lodz, Poland
[10] Charles Univ Prague, Fac Med 1, Inst Hyg & Epidemiol, Prague, Czech Republic