. 2018 Apr 9;7(4):e90. doi: 10.2196/resprot.9374
©Ra'eesa Doola, Alwyn S Todd, Josephine M Forbes, Adam M Deane, Jeffrey J Presneill, David J Sturgess. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 09.04.2018.
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Figure 1.
Blinding of formulae.