title: Blood lead and carboxyhaemoglobin levels in roadside workers.
mesh_terms: D002263:Carboxyhemoglobin / Q000032:analysis*; D004739:England; D006801:Humans; D007854:Lead / Q000097:blood*; D009784:Occupational Diseases / Q000097:blood*; D009790:Occupations; D012306:Risk; D001335:Vehicle Emissions / Q000009:adverse effects*
chemical_list: D001335:Vehicle Emissions; D007854:Lead; D002263:Carboxyhemoglobin