About the Authors

Erwin Stolz

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Nathalie Burkert

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Franziska Großschädl

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Éva Rásky

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Willibald J. Stronegger

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Wolfgang Freidl

wolfgang.freidl@medunigraz.at

Affiliation Institute of Social Medicine and Epidemiology, Medical University of Graz, Graz, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ES WF. Performed the experiments: ES WF. Analyzed the data: ES WF. Contributed reagents/materials/analysis tools: ES WF NB FG ER WS. Wrote the paper: ES WF NB FG ER WS.