About the Authors

Sarah E. Wiehe

swiehe@iu.edu

Affiliation Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America

Mei-Po Kwan

Affiliation Department of Geography and Geographic Information Science, University of Illinois, Urbana-Champaign, Illinois, United States of America

Jeff Wilson

Affiliation Department of Geography, School of Liberal Arts, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States of America

J. Dennis Fortenberry

Affiliation Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SEW MPK JW JDF. Performed the experiments: SEW. Analyzed the data: SEW. Contributed reagents/materials/analysis tools: SEW MPK JW JDF. Wrote the paper: SEW MPK JW JDF.