About the Authors

Anthony S. Kim

akim@ucsf.edu

Affiliation Department of Neurology, University of California San Francisco, San Francisco, California, United States of America

Sharon N. Poisson

Affiliation Department of Neurology, University of California San Francisco, San Francisco, California, United States of America

J. Donald Easton

Affiliation Department of Neurology, University of California San Francisco, San Francisco, California, United States of America

S. Claiborne Johnston

Affiliations Department of Neurology, University of California San Francisco, San Francisco, California, United States of America, Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ASK SCJ. Performed the experiments: ASK SNP JDE SCJ. Analyzed the data: ASK. Wrote the paper: ASK SNP JDE SCJ.