About the Authors
- Peter Tinnemann
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* E-mail: Peter.Tinnemann@charite.de
Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, Berlin, Germany
- Jonas Özbay
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Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, Berlin, Germany
- Victoria A. Saint
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Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, Berlin, Germany
- Stefan N. Willich
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Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité University Medical Center, Berlin, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Analyzed the data: PT JÖ. Wrote the paper: PT JÖ VAS. Data acquisition and refinement: JÖ. Designed method: PT JÖ. Critical revision of manuscript: SNW.