Multiple sclerosis: occupation and social group at onset.
D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis; D009790:Occupations; D012737:Sex Factors; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D006113:United Kingdom