About the Authors
- Catrine Tudor-Locke
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* E-mail: Tudor-Locke@pbrc.edu
Affiliation Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America
- John M. Schuna Jr
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Affiliation Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America
- Peter T. Katzmarzyk
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Affiliation Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America
- Wei Liu
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Affiliation Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America
- Karen S. Hamrick
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Affiliation U.S. Department of Agriculture Economic Research Service, Washington, DC, United States of America
- William D. Johnson
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Affiliation Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America
Competing Interests
Dr. Hamrick, one of the co-authors, is employed by the USDA Economic Research Service. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all PLOS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: CTL PTK KSH WDJ. Performed the experiments: KSH. Analyzed the data: JMS WL KSH WDJ. Contributed reagents/materials/analysis tools: WDJ PTK. Wrote the paper: CTL JMS PTK WL KSH WDJ. Data interpretation: CTL JMS PTK WL KSH WDJ.