3Mulsant BH, Ganguli M. Epidemlology and diagnosis of depression in late life. J Clin Psychiatry, 1999,60( suppl 20 ) : 9.
4Lobo A, Saz P, Marcos G, et al. The prevalence of dementia and depression in the elderly community in a southern European population. Arch Gen Psychiatry, 1995,52 : 497.
5Ormel J, Oldehinkel A J, Bfilman EL. The interplay and etiological continuity of neuroticism, diflleulties, and life events in the etiology of major and subsyndromal, first and recurrent depressive episodes in later life. Am J Psychiatry,2001,158:885.
6Baldwin RC, Tomenson B. Depression in later life : A comparison of symptoms and risk factors in early and late onset eases. Br J Psychiatry, 1995,167:649.
7Nebes RD, Vora JI, Meltzer CC, et al. Relationship of deep white mater hyperintensities and apolipoprotein E genotype to depressive symptoms in older adults without clinical depression. Am J Psychiatry, 2001,158 : 878.
8Lesser IM, Boone KB, Mehringer CM. Cognition and white matter huperintensities in older depressed patients. Am J Psychiatry, 1996,153 : 1280.
9Kalayam B, Alexopoulos GS. Prefrontal dysfunction and treatment response in geriatric depression.Arch Gen Psychiatry, 1999,56:713.
10Alexopoulos GS, Meyers BS, Young RC, et al. Executive dysfunction and long-term outcomes of geriatric depression. Arch Gen Psychiatry, 2000,57 : 285.
