[1] German Canc Res Ctr, Div Clin Epidemiol & Aging Res C070, D-69009 Heidelberg, Germany
[2] Inst Med Biostat Epidemiol & Informat, Canc Registry Rhineland Palatinate, Mainz, Germany
[3] Canc Registry Saarland, Saarbrucken, Germany
[4] Med Univ Lubeck, Canc Registry Schleswig Holstein, Inst Canc Epidemiol, D-23538 Lubeck, Germany
[5] Univ Bremen, Canc Registry Bremen, Bremen Inst Prevent Res & Social Med, D-28359 Bremen, Germany
[6] Canc Registry Lower Saxony, Oldenburg, Germany