title: Blood carboxyhaemoglobin levels in police officers.
mesh_terms: D002263:Carboxyhemoglobin / Q000032:analysis*; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D009787:Occupational Medicine; D009864:Ontario; D012907:Smoking; D012926:Social Control, Formal; D001335:Vehicle Emissions
chemical_list: D006454:Hemoglobins; D001335:Vehicle Emissions; D002263:Carboxyhemoglobin