About the Authors
Biological Sciences, Stanford University, Stanford, California, United States of America
Department of Neurobiology, Duke University Medical Center, Durham, North Carolina, United States of America
The authors have declared that no competing interests exist.
SSB, EDJ, and RDF conceived and designed the experiments. SSB performed the experiments. SSB analyzed the data. RDF contributed reagents/materials/analysis tools. SSB, EDJ, and RDF wrote the paper.