. 2017 Mar 27;6(3):e48. doi: 10.2196/resprot.6674
©Sarah A Adams, Michelle Chan Leach, Chris Feudtner, Victoria A. Miller, Chén Collin Kenyon. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 27.03.2017.
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Figure 1.
Study flow diagram.