[1] Addenbrookes Hosp, Inst Metab Sci, MRC Epidemiol Unit, Cambridge CB2 0QQ, England
[2] Univ Med Ctr Utrecht, Utrecht, Netherlands
[3] Nutr Epidemiol Unit, Milan, Italy
[4] Publ Hlth Div Gipuzkoa, San Sebastian, Spain
[5] INSERM, Villejuif, France
[6] Epidemiol Prevent & Promot Hlth Serv, Pamplona, Spain
[7] German Inst Human Nutr, Potsdam, Germany
[8] Natl Inst Publ Hlth & Environm, NL-3720 BA Bilthoven, Netherlands
[9] Univ Med Ctr Utrecht, Dept Gastroenterol & Hepatol, Utrecht, Netherlands
[10] Univ Oxford, Oxford, England
[11] Umea Univ, Umea, Sweden
[12] Lund Univ, Malmo, Sweden
[13] Murcia Reg Hlth Author, Murcia, Spain
[14] Catalan Inst Oncol, Barcelona, Spain
[15] Danish Canc Soc, Copenhagen, Denmark
[16] German Canc Res Ctr, D-6900 Heidelberg, Germany
[17] Int Agcy Res Canc, F-69372 Lyon, France
[18] Sch Publ Hlth, Aarhus, Denmark
[19] Canc Res & Prevent Inst, Florence, Italy
[20] Univ Naples Federico II, Dept Clin & Expt Med, Naples, Italy
[21] Asturias Hlth & Hlth Care Council, Oviedo, Spain
[22] Human Genet Fdn HuGeF, Turin, Italy
[23] Ctr Canc Prevent, Turin, Italy
[24] Andalusian Sch Publ Hlth, Granada, Spain
[25] Canc Registry, Ragusa, Italy
[26] Histopathol Unit, Ragusa, Italy
[27] Univ Wageningen, Wageningen, Netherlands
[28] Univ London Imperial Coll Sci Technol & Med, London, England