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Borg J, Melander O, Johansson L, Uvnäs-Moberg K, Rehfeld JF, Ohlsson B.Borg J, et al. Among authors: ohlsson b.BMC Gastroenterol. 2009 Feb 25;9:17. doi: 10.1186/1471-230X-9-17.BMC Gastroenterol. 2009.PMID: 19243587Free PMC article.