What proportion of cancers are related to occupation?
D001195:Asbestosis / Q000150:complications; D002273:Carcinogens; D004739:England; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology* / Q000401:mortality; D008297:Male; D009784:Occupational Diseases / Q000209:etiology* / Q000401:mortality; D012907:Smoking / Q000150:complications; D012923:Social Class; D014481:United States; D014852:Wales
D002273:Carcinogens