title: Methodological problems in ecologic studies of the asbestos--cancer relationship.
mesh_terms: D001194:Asbestos / Q000009:adverse effects*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology* / Q000209:etiology; D011792:Quebec; D012042:Registries; D012306:Risk
chemical_list: D001194:Asbestos