About the Authors
Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
Center for Biotechnology, University of Nebraska–Lincoln, Lincoln, Nebraska, United States of America
Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States of America
The authors declare no conflict of interest.
Conceived and designed the experiments: CH HZ XGX. Performed the experiments: CH HZ JT HC YJL DW XW XGX. Analyzed the data: CH HZ XGX. Wrote the paper: CH HZ XGX.