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Jakobsen MD, Aust B, Kines P, Madeleine P, Andersen LL.Jakobsen MD, et al.Scand J Work Environ Health. 2019 Mar 1;45(2):146-157. doi: 10.5271/sjweh.3769.Scand J Work Environ Health. 2019.PMID: 30821335Free article.Clinical Trial.