title: Shale oil workers: absence of lung cancer hazard replicated.
mesh_terms: D000328:Adult; D000368:Aged; D005648:Fuel Oils / Q000009:adverse effects*; D006801:Humans; D008175:Lung Neoplasms / Q000139:chemically induced*; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000139:chemically induced*; D010578:Petroleum / Q000009:adverse effects*; D010865:Pilot Projects; D013548:Sweden
chemical_list: D005648:Fuel Oils; D010578:Petroleum