Published on in Vol 20, No 8 (2018): August
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10351, first published
.
1 Fred Hutchinson Cancer Research Center, Seattle, WA, United States
2 Kaiser Permanente Washington Health Research Institute, Seattle, WA, United States
3 Department of Neurological Surgery, University of Washington, Seattle, WA, United States