1. Unit of Biomarkers and Susceptibility, Bellvitge Institute of Biomedical Research (IDIBELL)Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat Barcelona Spain
2. Department of EpidemiologyUniversity of Tampere Tampere Finland
3. Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO)IDIBELL. L'Hospitalet de Llobregat Barcelona Spain
4. Centro de Investigación Biomédica en Red de Cáncer (CIBERONC) Madrid Spain
5. CIBER Epidemiología y Salud Pública (CIBERESP) Madrid Spain
6. DDL Diagnostic Laboratory Rijswijk The Netherlands
7. National Center for Scientific Research (CNRS)Laboratory MIVEGEC (UMR CNRS, IRD, UM) Montpellier France
8. PATH, Reproductive Health Global Program Seattle USA