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Scatterplots of the relationship between the OT and CRI-Education (A), between OD and the CRI-Working Activity (B), between OD and the CRI-Leisure Time (C), between OI and the CRI-Working Activity (D), and between OI and CRI-Leisure Time (E). CRI = Cognitive Reserve Index; OT = Odor Threshold; OD = Odor Discrimination; OI = Odor Identification.
