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Nielsen SE, Segal SK, Worden IV, Yim IS, Cahill L.Nielsen SE, et al. Among authors: cahill l.Biol Psychol. 2013 Feb;92(2):257-66. doi: 10.1016/j.biopsycho.2012.10.007. Epub 2012 Nov 3.Biol Psychol. 2013.PMID: 23131613Free PMC article.Clinical Trial.