Institute of Medical Epidemiology;
Biostatistics and Informatics;
Martin-Luther-University Halle-Wittenberg;
Halle/Saale;
Germany;
German Cancer Research Centre;
Division of Cancer Epidemiology;
Heidelberg;
Germany;
Department of Medicine III;
Martin-Luther-University Halle-Wittenberg;
Halle/Saale;
Germany;