Epidemiologic approaches to cancer research.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D004812:Epidemiologic Methods; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology*; D009790:Occupations; D012737:Sex Factors; D013223:Statistics as Topic; D014481:United States