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Rørtveit G, Hannestad YS.Rørtveit G, et al. Among authors: hannestad ys.Tidsskr Nor Laegeforen. 2014 Oct 14;134(19):1848-52. doi: 10.4045/tidsskr.13.0860. eCollection 2014 Oct 14.Tidsskr Nor Laegeforen. 2014.PMID: 25314985Free article.Review.English, Norwegian.
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