1. Institute for Community Medicine, University of Greifswald, Germany.
2. Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
3. Institute of Medical Epidemiology, Biostatistics and Informatics, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
4. Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, München, Germany.
5. Research Center for Prevention and Health, Glostrup Hospital, University of Copenhagen, Copenhagen, Denmark.
6. Institute of Clinical Chemistry and Laboratory Medicine, University of Greifswald, Germany.
7. Institute of Physiology, University of Greifswald, Germany.
8. Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark.
9. German Cancer Research Centre, Division of Cancer Epidemiology, Heidelberg, Germany.
10. Department of Medicine III, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
11. Institute of Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, München, Germany.