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Jakobsen AN, Skovgaard AM, Lichtenberg A, Jørgensen T; CCCC 2000 Study Group.Jakobsen AN, et al. Among authors: skovgaard am.Ugeskr Laeger. 2007 Mar 12;169(11):1001-5.Ugeskr Laeger. 2007.PMID: 17371633Danish.