About the Authors

Ute Mons

u.mons@dkfz.de

Affiliation Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany

Elke Raum

Affiliation Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany

Heike U. Krämer

Affiliation Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany

Gernot Rüter

Affiliation Practice of General Medicine, Benningen/Neckar, Germany

Dietrich Rothenbacher

Affiliation Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany

Thomas Rosemann

Affiliation Department of General Practice and Health Services Research, University Hospital of Zürich, Zürich, Switzerland

Joachim Szecsenyi

Affiliation Department of General Practice and Health Services Research, University Hospital Heidelberg, Heidelberg, Germany

Hermann Brenner

Affiliation Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HB ER HUK GR DR TR JS. Performed the experiments: HB ER HUK. Analyzed the data: UM. Wrote the paper: UM HB ER HUK GR DR TR JS.