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Bjork EL, Bjork RA.Bjork EL, et al. Among authors: bjork ra.J Exp Psychol Learn Mem Cogn. 2003 Jul;29(4):524-31. doi: 10.1037/0278-7393.29.4.524.J Exp Psychol Learn Mem Cogn. 2003.PMID: 12924855