About the Authors
- Heather M. Johnson
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Affiliation Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
- Megan E. Piper
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Affiliation Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
- Timothy B. Baker
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Affiliation Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
- Michael C. Fiore
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Affiliation Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
- James H. Stein
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* E-mail: jhs@medicine.wisc.edu
Affiliation Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
Competing Interests
HJ, MP, TB, and JS have no conflicts to disclose. Over the last three years, MF has served as an investigator in research studies at the University of Wisconsin that were funded wholly or in part by Pfizer, GlaxoSmithKline and Nabi. From 1997 to 2010, MF held a University of Wisconsin named Chair for the Study of Tobacco Dependence, made possible by a gift to University of Wisconsin from GlaxoWellcome. Medications for the study were provided under a research agreement with GlaxoSmithKline. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: TB MF JS. Performed the experiments: HJ MP TB MF JS. Analyzed the data: HJ MP TB JS. Contributed reagents/materials/analysis tools: MP TB MF JS. Wrote the paper: HJ MP TB JS. Revision: MF.