Published on in Vol 6, No 1 (2018): January
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8815, first published
.
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1 Hebrew SeniorLife Institute for Aging Research, Harvard Medical School, Roslindale, MA, United States
2 Berenson-Allen Center for Noninvasive Brain Stimulation, Division of Interventional Cognitive Neurology, Beth Israel Deaconess Medical Center, Boston, MA, United States