Survey research in aging. an evaluation of the Harris survey.
D000368:Aged; D000375:Aging; D001290:Attitude; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012106:Research / Q000592:standards*; D012938:Social Perception; D012959:Socioeconomic Factors; D014481:United States