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Johansen RE, Barre A, Sundby J, Vangen S.Johansen RE, et al. Among authors: vangen s.Tidsskr Nor Laegeforen. 2004 Oct 7;124(19):2506-8.Tidsskr Nor Laegeforen. 2004.PMID: 15477893Free article.Norwegian.No abstract available.
Cham M, Sundby J, Vangen S.Cham M, et al. Among authors: vangen s.Reprod Health. 2005 May 4;2(1):3. doi: 10.1186/1742-4755-2-3.Reprod Health. 2005.PMID: 15871743Free PMC article.
Vikanes A, Grjibovski AM, Vangen S, Magnus P.Vikanes A, et al. Among authors: vangen s.Eur J Public Health. 2008 Oct;18(5):460-5. doi: 10.1093/eurpub/ckn051. Epub 2008 Jun 10.Eur J Public Health. 2008.PMID: 18550566
Cham M, Vangen S, Sundby J.Cham M, et al. Among authors: vangen s.Glob Public Health. 2007;2(4):359-72. doi: 10.1080/17441690600918188.Glob Public Health. 2007.PMID: 19283633