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Weigel R, Krüger C.Weigel R, et al. Among authors: kruger c.Glob Health Action. 2020 Dec 31;13(1):1829401. doi: 10.1080/16549716.2020.1829401.Glob Health Action. 2020.PMID: 33032497Free PMC article.
Krüger C, Heinzel-Gutenbrunner M, Ali M.Krüger C, et al.BMC Health Serv Res. 2017 Dec 13;17(1):822. doi: 10.1186/s12913-017-2781-3.BMC Health Serv Res. 2017.PMID: 29237494Free PMC article.