. 2013 Oct 18;2(2):e42. doi: 10.2196/resprot.2865
©Sandy R Whitehouse, Pei-Yoong Lam, Ellen Balka, Shelagh McLellan, Mariana Deevska, Daniel Penn, Robert Issenman, Mary Paone. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 18.10.2013.
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Figure 4.
TickiT screenshot.