About the Authors

Daniel S. Morris


Affiliation Tobacco Prevention & Education Program, Health Promotion & Chronic Disease Prevention, Oregon Health Authority, Portland, Oregon, United States of America

Michael A. Tynan

Affiliation Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflict: DM works for the Oregon Tobacco Prevention and Education Program and is paid in part with Measure 44 tobacco tax revenues. If the federal tobacco tax disparity between pipe and RYO tobacco were closed, tobacco-tax funded state programs like TPEP would see an increase in funding. 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: DSM MAT. Performed the experiments: DSM. Analyzed the data: DSM. Wrote the paper: DSM MAT.