About the Authors

Rose M. Parkinson

Affiliation The Sidney-Kimmel Cancer Research Center, The Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Samuel L. Collins

Affiliation Division of Pulmonary Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Maureen R. Horton

Affiliation Division of Pulmonary Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Jonathan D. Powell

poweljo@jhmi.edu

Affiliation The Sidney-Kimmel Cancer Research Center, The Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

Jonathan Powell 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.

Author Contributions

Conceived and designed the experiments: RP JP. Performed the experiments: RP SC. Analyzed the data: RP. Contributed reagents/materials/analysis tools: JP MH. Wrote the paper: RP.