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Hagve TA, Asberg A, Ulvik R, Borch-Iohnsen B, Thorstensen K.Hagve TA, et al. Among authors: asberg a.Tidsskr Nor Laegeforen. 2009 Apr 30;129(9):863-6. doi: 10.4045/tidsskr.08.0084.Tidsskr Nor Laegeforen. 2009.PMID: 19415085Free article.Review.Norwegian.