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Uggerhøj Andersen C, Sønderskov LD, Nielsen-Kudsk JE, Simonsen U, Bendstrup E, Hilberg O, Mellemkjær S.Uggerhøj Andersen C, et al.Ugeskr Laeger. 2013 Jun 3;175(23):1642-5.Ugeskr Laeger. 2013.PMID: 23731992Review.Danish.