About the Authors

Liying Zheng

Affiliation Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Christopher D. Harner

Affiliation Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Xudong Zhang

xuz9@pitt.edu

Affiliations Departments of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America, Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America, Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XZ. Performed the experiments: LZ CH XZ. Analyzed the data: LZ XZ. Wrote the paper: LZ CH XZ.