About the Authors
- Woochul Nam
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Affiliation University of Michigan, Ann Arbor, Michigan 48109-2125, United States of America
- Bogdan I. Epureanu
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* E-mail: epureanu@umich.edu
Affiliation University of Michigan, Ann Arbor, Michigan 48109-2125, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: WN BE. Performed the experiments: WN. Analyzed the data: WN BE. Wrote the paper: WN BE.