About the Authors
- Julia K. Ostermann
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* E-mail: julia.ostermann@charite.de
Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité - University Medical Center, 10117 Berlin, Germany
- Thomas Reinhold
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Affiliation Institute for Social Medicine, Epidemiology and Health Economics, Charité - University Medical Center, 10117 Berlin, Germany
- Claudia M. Witt
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Affiliations Institute for Social Medicine, Epidemiology and Health Economics, Charité - University Medical Center, 10117 Berlin, Germany, Institute for Complementary and Integrative Medicine, University of Zurich and University Hospital Zurich, Zurich, Switzerland, University of Maryland School of Medicine, Center for Integrative Medicine, Baltimore, Maryland, United States of America
Competing Interests
The authors have read the journal's policy and have the following competing interests: This is an investigator initiated trial that is co-sponsored by the statutory health insurance company Techniker Krankenkasse. This does alter the authors' adherence to PLOS ONE policies on sharing data and materials as the data is legally restricted.
Author Contributions
Conceived and designed the experiments: CMW TR. Analyzed the data: JKO. Wrote the paper: CMW JKO TR.