About the Authors
- Hui Wang
- Chen Chen
- Hsieh Fushing
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* E-mail: fushing@wald.ucdavis.edu
Affiliation Department of Statistics, University of California Davis, Davis, California, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: HF. Performed the experiments: HF HW CC. Analyzed the data: HF HW CC. Wrote the paper: HF HW CC.