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Wang CL, Ding ST, Hsieh MJ, Shu CC, Hsu NC, Lin YF, Chen JS.Wang CL, et al. Among authors: chen js.BMC Health Serv Res. 2016 May 25;16:190. doi: 10.1186/s12913-016-1439-x.BMC Health Serv Res. 2016.PMID: 27225191Free PMC article.