. 2014 Nov 10;2(4):e48. doi: 10.2196/mhealth.3420
©Robert L Newton Jr, Arwen M Marker, H Raymond Allen, Ryan Machtmes, Hongmei Han, William D Johnson, John M Schuna Jr, Stephanie T Broyles, Catrine Tudor-Locke, Timothy S Church. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 10.11.2014.
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Figure 1.
Study flowchart.