About the Authors
- Roberta W. Scherer, Ann-Margret Ervin, Kay Dickersin
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
- Pamela C. Sieving
- National Institutes of Health Library, National Institutes of Health, Bethesda, Maryland, United States of America
One of the co-authors, Roberta Scherer, is a PLoS ONE Editorial Board member. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.
Conceived and designed the experiments: RWS PS KD AE. Performed the experiments: RWS PS KD AE. Analyzed the data: RWS. Contributed reagents/materials/analysis tools: KD AE. Wrote the paper: RWS PS KD AE.