Apolipoprotein E e4 allele is associated with more rapid motor decline in older persons.
Buchman AS, Boyle PA, Wilson RS, Beck TL, Kelly JF, Bennett DA. Apolipoprotein E e4 allele is associated with more rapid motor decline in older persons. Alzheimer Dis Assoc Disord. 2009 Jan-Mar; 23(1):63-9.