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Fretheim A, Odgaard-Jensen J, Brørs O, Madsen S, Njølstad I, Norheim OF, Svilaas A, Kristiansen IS, Thürmer H, Flottorp S.Fretheim A, et al.BMC Med. 2012 Apr 5;10:33. doi: 10.1186/1741-7015-10-33.BMC Med. 2012.PMID: 22480336Free PMC article.Review.
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