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Rugulies R, Madsen IE, Hjarsbech PU, Hogh A, Borg V, Carneiro IG, Aust B.Rugulies R, et al. Among authors: hjarsbech pu.Scand J Work Environ Health. 2012 May;38(3):218-27. doi: 10.5271/sjweh.3278. Epub 2012 Feb 2.Scand J Work Environ Health. 2012.PMID: 22298126Free article.
Thorsen SV, Rugulies R, Hjarsbech PU, Bjorner JB.Thorsen SV, et al. Among authors: hjarsbech pu.BMC Med Res Methodol. 2013 Sep 17;13:115. doi: 10.1186/1471-2288-13-115.BMC Med Res Methodol. 2013.PMID: 24040899Free PMC article.