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Gibbons LE, van Belle G, Yang M, Gill C, Brayne C, Huppert FA, Paykel E, Larson E.Gibbons LE, et al. Among authors: paykel e.Int J Geriatr Psychiatry. 2002 Aug;17(8):723-8. doi: 10.1002/gps.683.Int J Geriatr Psychiatry. 2002.PMID: 12211121