Multiple sclerosis; its frequency and distribution, with special reference to San Francisco.
D000328:Adult; D001900:Boston; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D009103:Multiple Sclerosis / Q000453:epidemiology*; D055820:New Orleans; D015995:Prevalence; D012495:San Francisco
MULTIPLE SCLEROSIS/epidemiology