About the Authors

Daniel A Beard

To whom correspondence should be addressed. E-mail: dbeard@mcw.edu

Affiliations Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America , Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

DAB conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, and wrote the paper.