[Study on the prevalence of Parkinson's disease in Hongkou District, Shanghai].
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D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010300:Parkinson Disease / Q000453:epidemiology*