Prevalence of smell loss in Parkinson's disease--a multicenter study.


Previous data on the prevalence of olfactory dysfunction in Parkinson's disease (PD) range from 45% to 90%. The present multicenter study aimed to provide data on the prevalence of smell loss in a large sample of PD patients from three independent populations. Olfactory sensitivity was tested in 400 patients from Australia, Germany, and The Netherlands by… (More)
DOI: 10.1016/j.parkreldis.2008.12.005


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