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Gjersvik PJ, Nylenna M, Aasland OG.Gjersvik PJ, et al.Tidsskr Nor Laegeforen. 2001 Dec 10;121(30):3515-8.Tidsskr Nor Laegeforen. 2001.PMID: 11808010Free article.Norwegian.
Gjersvik P.Gjersvik P.Tidsskr Nor Laegeforen. 2006 Aug 24;126(16):2087.Tidsskr Nor Laegeforen. 2006.PMID: 16932772Free article.Norwegian.No abstract available.