About the Authors

Joseph C. Burns

joburns@wakehealth.edu

Affiliation Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America

James J. Yoo

Affiliation Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America

Anthony Atala

Affiliation Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America

John D. Jackson

Affiliation Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America

Competing Interests

The Wake Forest Institute for Regenerative Medicine has filed a U. S. Provisional Patent Application on the technology described herein (submitted March 7, 2012). 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: JCB JJY JDJ. Performed the experiments: JCB. Analyzed the data: JCB. Contributed reagents/materials/analysis tools: JCB JJY AA JDJ. Wrote the paper: JCB JJY AA JDJ.