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Johansen M, Afshari A, Kristensen BB.Johansen M, et al. Among authors: kristensen bb.Ugeskr Laeger. 2010 Mar 15;172(11):852-7.Ugeskr Laeger. 2010.PMID: 20403266Review.Danish.
Johansen M, Afshari A, Kristensen BB.Johansen M, et al. Among authors: kristensen bb.Ugeskr Laeger. 2009 Nov 23;171(48):3528-30.Ugeskr Laeger. 2009.PMID: 19944053Danish.