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ObjectiveThe aim of the study was to examine the sense of smell in LRRK2 mutation carriers and in patients with sporadic PD (sPD).
Materials and MethodsA total of 343 individuals were included: 275 sPD of whom 90 were de novo patients with sPD, 17 LRRK2 PD, 36 healthy LRRK2 mutation carriers, and 15 healthy family members without mutation. All subjects underwent neurologic examination and olfactory...