About the Authors

Ray Antonelli

Affiliation School of Medicine, University of North Carolina, Chapel Hill, NC, United States of America

Anthony J. Viera

anthony_viera@med.unc.edu

Affiliation Department of Family Medicine, University of North Carolina, Chapel Hill, NC, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AJV. Performed the experiments: RA. Analyzed the data: AJV RA. Wrote the paper: RA.