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Showing articles 0 to 2 of 2 Filter Applied: twins (Click to remove) Lower Cognitive Performance in Normal Older Adult Male Twins Carrying the Apolipoprotein E-E4 Allele Arch Neurol 51:1189-1192, Reed,T.,et al, 1994 Twinning and Neurologic Morbisity Am J Dis Child 146:1110-1113, Scheller,J.M.&Nelson,K.B., 1992 Showing articles 0 to 2 of 2