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Downs M, Capstick A, Baldwin PC, Surr C, Bruce E.Downs M, et al. Among authors: baldwin pc.Int Psychogeriatr. 2009 Apr;21 Suppl 1:S3-S15. doi: 10.1017/S1041610209008837. Epub 2009 Mar 25.Int Psychogeriatr. 2009.PMID: 19317922