title: The epidemiological approach to the etiology of cancer.
mesh_terms: D000367:Age Factors; D002273:Carcinogens; D004787:Environmental Pollution; D004812:Epidemiologic Methods; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced / Q000209:etiology* / Q000276:immunology
chemical_list: D002273:Carcinogens