About the Authors

Swarna Bais

Affiliation Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Matthew A. Churgin

Affiliation Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Christopher Fang-Yen

Affiliation Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Robert M. Greenberg

rgree@vet.upenn.edu

Affiliation Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RMG SB. Performed the experiments: SB RMG. Analyzed the data: SB RMG. Contributed reagents/materials/analysis tools: MAC CFY. Wrote the paper: RMG SB MAC CFY.