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Meddings J, Kerr EA, Heisler M, Hofer TP.Meddings J, et al. Among authors: heisler m.BMC Health Serv Res. 2012 Aug 21;12:270. doi: 10.1186/1472-6963-12-270.BMC Health Serv Res. 2012.PMID: 22909303Free PMC article.