About the Authors

Lei Bai

Affiliation Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Amita Sehgal

amita@mail.med.upenn.edu

Affiliations Howard Hughes Medical Institute, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LB AS. Performed the experiments: LB. Analyzed the data: LB. Wrote the paper: LB AS.