title: OPEC otitis.
mesh_terms: D000328:Adult; D005742:Gasoline / Q000506:poisoning*; D006801:Humans; D008297:Male; D010033:Otitis Media / Q000139:chemically induced*; D010578:Petroleum / Q000506:poisoning*
chemical_list: D005742:Gasoline; D010578:Petroleum