About the Authors
- Holger Cramer, Gustav Dobos
- Department of Internal and Integrative Medicine, Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
- Carol Krucoff
- Duke Integrative Medicine, Duke University, Durham, North Carolina, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: HC GD. Performed the experiments: HC. Analyzed the data: HC CK. Wrote the paper: HC CK.