About the Authors

Robert T Wheeler

Affiliation Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, United States of America

Gerald R Fink

Affiliation Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

RTW and GRF conceived and designed the experiments. RTW performed the experiments. RTW analyzed the data. RTW and GRF wrote the paper.