. 2018 Jun 22;1(1):e10176. doi: 10.2196/10176
©Michelle L Litchman, Christopher Snider, Linda S Edelman, Sarah E Wawrzynski, Perry M Gee. Originally published in JMIR Aging (http://aging.jmir.org), 22.06.2018.
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Figure 1.
Sentiment over time.