. 2015 Apr 29;17(4):e106. doi: 10.2196/jmir.4126
©Daniel J Amante, Timothy P Hogan, Sherry L Pagoto, Thomas M English, Kate L Lapane. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 29.04.2015.
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Figure 1.
Percent of US population reporting each access difficulty over the past 12 months.