Ageism compared to racism and sexism.
D000328:Adult; D000368:Aged; D000375:Aging; D001290:Attitude; D004522:Educational Status; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009790:Occupations; D044469:Racial Groups; D012737:Sex Factors; D012959:Socioeconomic Factors; D013997:Time Factors