About the Authors

Roni A. Neff

Contributed equally to this work with: Roni A. Neff, Marie L. Spiker, Patricia L. Truant

Rneff1@jhu.edu

Affiliations Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, Center for a Livable Future, The Johns Hopkins University, Baltimore, Maryland, United States of America, Department of Health Policy and Management. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Marie L. Spiker

Contributed equally to this work with: Roni A. Neff, Marie L. Spiker, Patricia L. Truant

Affiliations Center for a Livable Future, The Johns Hopkins University, Baltimore, Maryland, United States of America, Program in Human Nutrition, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Patricia L. Truant

Contributed equally to this work with: Roni A. Neff, Marie L. Spiker, Patricia L. Truant

Affiliations Center for a Livable Future, The Johns Hopkins University, Baltimore, Maryland, United States of America, Department of Health Policy and Management. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RAN. Performed the experiments: RAN PLT. Analyzed the data: PLT MLS RAN. Wrote the paper: RAN MLS PLT.