Division of Preventive Oncology, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Heidelberg, Germany. Department of Population Health Sciences, University of Utah, Salt Lake City, Utah. Huntsman Cancer Institute, Salt Lake City, Utah. Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany. European Molecular Biology Laboratory (EMBL), Heidelberg, Germany. Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic. Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany. NCT Cancer Registry, German Cancer Research Center (DKFZ), Heidelberg, Germany. Institute of Pathology, University Hospital, Heidelberg, Germany. Tissue Bank of the National Center for Tumor Diseases (NCT) Heidelberg, Germany. Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany. German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany. Department of Clinical Epidemiology, Leibniz Institute for Prevention Research and Epidemiology, Bremen, Germany. Faculty of Human and Health Sciences, University of Bremen, Bremen, Germany. Department of Population Health Sciences, University of Utah, Salt Lake City, Utah. neli.ulrich@hci.utah.edu. Fred Hutchinson Cancer Research Center, Seattle, Washington.