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Madsen KM, Gerstoft J, Kvinesdal BB, Nielsen HI, Møller A, Pedersen C, Obel N.Madsen KM, et al. Among authors: nielsen hi.Ugeskr Laeger. 1999 Nov 29;161(48):6619-21.Ugeskr Laeger. 1999.PMID: 10643345Danish.