About the Authors

Michael Z. David

mdavid@medicine.bsd.uchicago.edu

Affiliations Department of Pediatrics, The University of Chicago, Chicago, Illinois, United States of America, Department of Medicine, The University of Chicago, Chicago, Illinois, United States of America

Susan Boyle-Vavra

Affiliation Department of Pediatrics, The University of Chicago, Chicago, Illinois, United States of America

Diana L. Zychowski

Affiliation Department of Pediatrics, The University of Chicago, Chicago, Illinois, United States of America

Robert S. Daum

Affiliation Department of Pediatrics, The University of Chicago, Chicago, Illinois, United States of America

Competing Interests

Dr. Daum reports serving on paid advisory boards for Clorox (2007 and 2010), Pfizer (2007), Astellas and Theravance (2007), Merck (2008), GlaxoSmithKline (2009), Novartis (2009), and Glycovaxyn (2010). Support from Pfizer is also acknowledged. 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: MZD SBV RSD. Performed the experiments: MZD DLZ. Analyzed the data: MZD. Contributed reagents/materials/analysis tools: RSD SBV MZD. Wrote the paper: MZD RSD. Procured funding: RSD.