About the Authors
- Steffi Heinecke
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* E-mail: sheinecke@uni-wuppertal.de
Affiliation Institute of Sociology, School of Human and Social Sciences, University of Wuppertal, Wuppertal, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SH. Performed the experiments: SH. Analyzed the data: SH. Contributed reagents/materials/analysis tools: SH. Wrote the paper: SH.