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Markey KA, Ottridge R, Mitchell JL, Rick C, Woolley R, Ives N, Nightingale P, Sinclair AJ.Markey KA, et al. Among authors: mitchell jl.JMIR Res Protoc. 2017 Sep 18;6(9):e181. doi: 10.2196/resprot.7806.JMIR Res Protoc. 2017.PMID: 28923789Free PMC article.