About the Authors

Robert C. Karn

rkarn@butler.edu

Affiliation Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona, United States of America

Christina M. Laukaitis

Affiliation Department of Medicine, College of Medicine, University of Arizona, Tucson, Arizona, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RCK CML. Performed the experiments: RCK. Analyzed the data: RCK CML. Wrote the paper: RCK CML.