About the Authors

Li Liu

Affiliation Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America

Ralph P. Mason

Ralph.Mason@UTSouthwestern.edu

Affiliation Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RPM. Performed the experiments: LL. Analyzed the data: LL. Contributed reagents/materials/analysis tools: RPM. Wrote the paper: RPM.