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Nielsen KA, Jensen NC, Jensen CM, Thomsen M, Pedersen L, Johnsen SP, Ingeman A, Bartels PD, Thomsen RW.Nielsen KA, et al. Among authors: ingeman a.BMC Health Serv Res. 2009 Oct 12;9:186. doi: 10.1186/1472-6963-9-186.BMC Health Serv Res. 2009.PMID: 19822018Free PMC article.