About the Authors
- Ulrich Siering
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* E-mail: ulrich.siering@iqwig.de
Affiliation Institute for Quality and Efficiency in Health Care (IQWiG), Cologne, Germany
- Michaela Eikermann
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Affiliation Institute for Research in Operative Medicine (IFOM), Faculty of Health, Department of Medicine, Witten/Herdecke University, Cologne, Germany
- Elke Hausner
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Affiliation Institute for Quality and Efficiency in Health Care (IQWiG), Cologne, Germany
- Wiebke Hoffmann-Eßer
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Affiliation Institute for Quality and Efficiency in Health Care (IQWiG), Cologne, Germany
- Edmund A. Neugebauer
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Affiliation Institute for Research in Operative Medicine (IFOM), Faculty of Health, Department of Medicine, Witten/Herdecke University, Cologne, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: US ME EAN. Performed the experiments: US EH WH. Analyzed the data: US WH. Contributed reagents/materials/analysis tools: ME. Wrote the manuscript: US ME WH EH EAN.