. 2012 Feb 29;14(1):e37. doi: 10.2196/jmir.1998
©Corneel Vandelanotte, Mitch J Duncan, Ronald C Plotnikoff, W Kerry Mummery. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 29.02.2012.
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Figure 7.
Screenshot of combination mode feedback 2.