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O L Lopez, J T Baker, A S Wahed, et al. Long-term effects of the concomitant use of memantine with cholinesterase inhibition in Alzheimer disease (J Neurol Neurosurg Psychiatry 2009;80:600–7). In the Methods section of the abstract the sentence should be “Of these patients, 140 (14.9%) used both ChEIs and memantine, 387 (41%) used only ChEIs, and 416 (44.1%) used neither.” Also, the corrected figures 1, 2 and 3 are published here.

Figure 1

Flow chart of the patients examined from 1983 to 2004, and the number of patients in each cohort. AD, Alzheimer disease; ChEIs, cholinesterase inhibitors.

Figure 2

Time to nursing home admission in Cohort 1. ChEIs, cholinesterase inhibitors.

Figure 3

Time to nursing home admission in Cohort 2. ChEIs, cholinesterase inhibitors.

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