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Lofthus CM, Falch JA, Meyer H, Nordsletten L, Osnes EK, Stensvold I, Kristiansen IS.Lofthus CM, et al.Tidsskr Nor Laegeforen. 1999 May 30;119(14):2079-80.Tidsskr Nor Laegeforen. 1999.PMID: 10394290Norwegian.No abstract available.