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Sand T, Schrader H.Sand T, et al. Among authors: schrader h.Tidsskr Nor Laegeforen. 2009 Oct 8;129(19):2007-10. doi: 10.4045/tidsskr.08.0655.Tidsskr Nor Laegeforen. 2009.PMID: 19823207Free article.Review.Norwegian.