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Iordanova E, Røe C, Keller A, Skouen JS, Rygh LJ, Espeland A, Gjerstad J.Iordanova E, et al. Among authors: keller a.Tidsskr Nor Laegeforen. 2010 Nov 18;130(22):2260-3. doi: 10.4045/tidsskr.09.0122.Tidsskr Nor Laegeforen. 2010.PMID: 21109850Free article.Review.Norwegian.