About the Authors

Rikki Corniola

Current address: Department of Medical Education, California Northstate University College of Medicine, Elk Grove, California, United States of America

Affiliation Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, United States of America

Yani Zou

Affiliation Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, United States of America

David Leu

Affiliations Palo Alto Institute for Research and Education, Palo Alto, California, United States of America, Geriatric Research, Education, and Clinical Center (GRECC), VA Palo Alto Health Care System, Palo Alto, California, United States of America

John R. Fike

Affiliation Departments of Neurosurgery and Radiation Oncology, University of California San Francisco, San Francisco, California, United States of America

Ting-Ting Huang

tthuang@stanford.edu

Affiliations Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, United States of America, Geriatric Research, Education, and Clinical Center (GRECC), VA Palo Alto Health Care System, Palo Alto, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TTH JRF RC. Performed the experiments: RC YZ DL. Analyzed the data: RC TTH DL YZ. Wrote the paper: RC TTH JRF.