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Positive significant correlations between Vv of mitochondria in oligodendrocytes and N of vacuoles in oligodendrocytes in the SPPS subgroup and in the control group (A); negative significant correlations between N of mitochondria in microglia and Vv of lipofuscin granules in oligodendrocytes in the SPNS subgroup (B) and negative significant correlations between area of nucleus of microglia and age (C) and age at onset of disease (D) in the SPPS subgroup.
