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Age-dependent impairment in learning and memory functions occurs in many animal species, including humans. Although cell death contributes to age-related cognitive impairment in pathological forms of aging, learning and memory deficiencies develop with age even without substantial cell death. The molecular and cellular basis of this biological aging process(More)
BACKGROUND A possible influence of estrogens on the dopaminergic system has been hypothesized and investigated by several studies, and fluctuations in motor symptoms related to the menstrual cycle have been reported in some movement disorders patients. We designed a survey to quantify how frequently female patients with various movement disorders are(More)
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