. 2013 Nov 29;2(2):e56. doi: 10.2196/resprot.2915
©Emily Gard Marshall, Michelle Anne Boudreau, Jan L Jensen, Nancy Edgecombe, Barry Clarke, Frederick Burge, Greg Archibald, Anthony Taylor, Melissa K Andrew. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 29.11.2013.
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Figure 2.
Concurrent Triangulation Design (adapted from Creswell and Clark 2011).