title: [Control of the level of total cholesterol of workers in a petroleum refinery].
mesh_terms: D002784:Cholesterol / Q000097:blood*; D006801:Humans; D009787:Occupational Medicine; D010578:Petroleum / Q000633:toxicity*
chemical_list: D010578:Petroleum; D002784:Cholesterol
keywords: CHOLESTEROL/blood; INDUSTRIAL MEDICINE; PETROLEUM/toxicology