About the Authors
- Daniel H. Janzen
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* E-mail: djanzen@sas.upenn.edu
Affiliation Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Winnie Hallwachs
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Affiliation Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: DHJ WH. Performed the experiments: DHJ WH. Analyzed the data: DHJ WH. Contributed reagents/materials/analysis tools: DHJ WH. Wrote the paper: DHJ WH.