Geography and diseases of the nervous system.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001315:Australia; D002648:Child; D003453:Cryptococcosis / Q000453:epidemiology; D004777:Environment; D005060:Europe; D005260:Female; D005843:Geography; D006363:Hebrides; D006801:Humans; D006816:Huntington Disease / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology; D009422:Nervous System Diseases / Q000453:epidemiology*; D009656:North America; D009790:Occupations; D044469:Racial Groups; D012606:Scotland; D012737:Sex Factors