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Lundin KE, Farstad IN, Sollid LM.Lundin KE, et al.Tidsskr Nor Laegeforen. 2003 Nov 20;123(22):3226-9.Tidsskr Nor Laegeforen. 2003.PMID: 14714016Free article.Norwegian.
Sollid LM, Lundin KE.Sollid LM, et al.Tidsskr Nor Laegeforen. 2003 Nov 20;123(22):3230-3.Tidsskr Nor Laegeforen. 2003.PMID: 14714017Free article.Norwegian.