About the Authors

Paul T. Williams

ptwilliams@lbl.gov

Affiliation Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America

Barry A. Franklin

Affiliation Preventive Cardiology and Cardiac Rehabilitation, William Beaumont Hospital, Beaumont Health Center, Royal Oak, Michigan, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PTW. Performed the experiments: PTW. Analyzed the data: PTW. Wrote the paper: BF PTW.