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Solberg DK, Refsum H.Solberg DK, et al.Tidsskr Nor Laegeforen. 2008 Jun 12;128(12):1410-2.Tidsskr Nor Laegeforen. 2008.PMID: 18552904Free article.Review.Norwegian.
Solberg DK, Koht J, Refsum H.Solberg DK, et al.Tidsskr Nor Laegeforen. 2006 Sep 7;126(17):2275-6.Tidsskr Nor Laegeforen. 2006.PMID: 16977723Norwegian.No abstract available.