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Zenk SN, Tarlov E, Powell LM, Wing C, Matthews SA, Slater S, Gordon HS, Berbaum M, Fitzgibbon ML.Zenk SN, et al. Among authors: berbaum m.Am J Health Promot. 2018 Mar;32(3):779-794. doi: 10.1177/0890117117694448. Epub 2017 Mar 2.Am J Health Promot. 2018.PMID: 29214851Free PMC article.