Primary prevention of cancer.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005163:Factor Analysis, Statistical; D005260:Female; D006689:Hodgkin Disease; D006801:Humans; D008017:Life Expectancy; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000401:mortality / Q000517:prevention & control*; D011315:Preventive Medicine; D014068:Tonsillectomy