About the Authors

Jian Zhou

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

N. Adrian Leu

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

Sigrid Eckardt

Affiliation Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America

K. John McLaughlin

Affiliation Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States of America

P. Jeremy Wang

pwang@vet.upenn.edu

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JZ PJW. Performed the experiments: JZ NAL SE KJM. Analyzed the data: JZ PJW. Wrote the paper: JZ PJW.