About the Authors

James Lightwood

lightwoodj@pharmacy.ucsf.edu

Affiliation School of Pharmacy and Center for Tobacco Control Research and Education, University of California San Francisco, San Francisco, California, United States of America

Stanton A. Glantz

Affiliation Department of Medicine (Cardiology), Center for Tobacco Control Research and Education, and Philip R. Lee Institute for Health Policy Studies, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JL SG. Analyzed the data: JL. Contributed reagents/materials/analysis tools: JL SG. Wrote the paper: JL SG.