. 2012 Nov 21;1(2):e19. doi: 10.2196/resprot.2348
©Debbe Thompson, Riddhi Bhatt, Melanie Lazarus, Karen Cullen, Janice Baranowski, Tom Baranowski. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 21.11.2012.
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Figure 2.
Conceptual model.